RÉSUMÉ
BACKGROUND/AIMS: We aimed to compare the effectiveness of the polyethylene glycol (PEG) and sennoside A+B regimens after clear fluid diet and fasting in bowel preperation of capsule endoscopy. MATERIALS AND METHODS: In this retrospective single-center study, patients who were consecutively examined with small bowel capsule endoscopy (SBCE) between May 2010 and March 2023 were evaluated. Patients who underwent PEG 4 L and sennoside A+B calcium 250 mL for small bowel preparation were assigned. The quality of the small bowel cleaning and the diagnostic yield in detecting of small bowel lesions were compared. RESULTS: Two hundred forty-two patients who underwent SBCE for various indications (PEG 74.4%, sennoside A+B 25.6%) were included in the study. The mean proximal small bowel cleaning scores was 1.97 ± 0.77 for PEG and 1.98 ± 0.04 (P = .83) for sennoside A+B; the mid small bowel cleaning scores was 1.76 ± 0.84 for PEG and 1.59 ± 0.05 (P = .108) for sennoside A+B; the mean distal small bowel cleaning scores was 1.27 ± 0.08 for PEG and 1.3 ± 0.54 (P = .805) for sennoside A+B; and the total small bowel cleaning scores was 1.66 ± 0.06 and 1.62 ± 0.04 (P = .622) for PEG and sennoside A+B, respectively. There were no significant differences regarding small bowel cleaning scores both segmentally and totally. At the same time, the diagnostic value of SBCE was similar in both groups. CONCLUSION: The effectiveness of sennoside A+B in SBCE preparation is similar to that of PEG and can be used in intestinal cleansing.
Sujet(s)
Endoscopie par capsule , Cathartiques , Intestin grêle , Polyéthylène glycols , Extrait de séné , Sennosides , Humains , Polyéthylène glycols/administration et posologie , Mâle , Femelle , Études rétrospectives , Endoscopie par capsule/méthodes , Adulte d'âge moyen , Intestin grêle/imagerie diagnostique , Cathartiques/administration et posologie , Sujet âgé , Adulte , Jeûne , Maladies intestinales/diagnosticRÉSUMÉ
The relationship of adipose tissue insulin resistance (AT-IR, a product of fasting insulin and free fatty acids) and homeostasis-model assessment-insulin resistance (HOMA-IR) to ß-cell function was studied cross-sectionally in the setting of subtle glucose dysregulation. Associations of AT-IR and HOMA-IR with fasting and post-glucose glycemia and ß-cell function inferred from serum insulin kinetics during a 75 g oral glucose tolerance test were studied in 168 young female Japanese students. ß-cell function was evaluated by disposition index calculated as a product of the insulinogenic index (IGI) and Matsuda index. AT-IR, not HOMA-IR, showed positive associations with post-glucose glycemia and area under the glucose response curve although both indices were associated with fasting glycemia. HOMA-IR, not AT-IR, was associated positively with log IGI whereas both indices were inversely associated with Matsuda index. AT-IR, not HOMA-IR, showed inverse associations with log disposition index. Associations of adipose tissue insulin resistance with ß-cell function (inverse) and glucose excursion in young Japanese women may suggest that lipotoxicity to pancreatic ß-cells for decades may be associated with ß cell dysfunction found in Japanese patients with type 2 diabetes. Positive association of HOMA-IR with insulinogenic index may be associated with compensatory increased insulin secretion.
Sujet(s)
Tissu adipeux , Glycémie , Hyperglycémie provoquée , Insulinorésistance , Cellules à insuline , Insuline , Humains , Femelle , Cellules à insuline/métabolisme , Tissu adipeux/métabolisme , Glycémie/métabolisme , Jeune adulte , Adulte , Japon , Insuline/sang , Insuline/métabolisme , Études transversales , Jeûne/sang , Peuples d'Asie de l'EstRÉSUMÉ
The hypothalamic arcuate nucleus (ARH) contains neurons vital for maintaining energy homeostasis that sense and respond to changes in blood-borne metabolic hormones. Despite its juxtaposition to the median eminence (ME), a circumventricular organ lacking a blood-brain barrier and thus exposed to circulating molecules, only a few ventral ARH neurons perceive these extravasating metabolic signals due to a poorly understood ME/ARH diffusion barrier. Here, we show in male mice that aggrecan, a perineural-net proteoglycan deposited by orexigenic ARH neurons, creates a peculiar ventrodorsal diffusion gradient. Fasting enhances aggrecan deposition more dorsally, reinforcing the diffusion barrier, particularly around neurons adjacent to fenestrated capillary loops that enter the ARH. The disruption of aggrecan deposits results in unregulated diffusion of blood-borne molecules into the ARH and impairs food intake. Our findings reveal the molecular nature and plasticity of the ME/ARH diffusion barrier, and indicate its physiological role in hypothalamic metabolic hormone sensing.
Sujet(s)
Agrécanes , Noyau arqué de l'hypothalamus , Métabolisme énergétique , Neurones , Animaux , Noyau arqué de l'hypothalamus/métabolisme , Mâle , Neurones/métabolisme , Agrécanes/métabolisme , Souris , Éminence médiane/métabolisme , Souris de lignée C57BL , Consommation alimentaire/physiologie , Jeûne/métabolisme , Barrière hémato-encéphalique/métabolisme , Transduction du signalRÉSUMÉ
BACKGROUND: Ketogenic interventions like short-term fasting show potential as complementary therapies to enhance the effectiveness of chemotherapy for cancer. However, the specific effects of fasting on head and neck squamous cell carcinoma (HNSCC) cells and healthy oral mucosa cells during these treatments are not well understood. This study investigates whether short-term fasting can differentially impact HNSCC cell survival and viability compared to healthy keratinocytes while undergoing standard chemotherapy regimens. METHODS: This study investigated the effects of fasting on cell viability in HN5 cell line and healthy oral keratinocyte cells. The HN5 cell line, derived from human tongue squamous cell carcinoma, and primary human keratinocytes isolated from the basal layer of gingival epithelium were divided into three groups: (1) control, (2) treated with the standard chemotherapeutic agent cisplatin, and (3) treated with cisplatin under fasting conditions achieved through 48-hour glucose restriction mimicking the blood glucose levels of fasted individuals. Cell proliferation was assessed at 48 and 72 h using the MTT assay, a colorimetric method based on mitochondrial dehydrogenase activity. Flow cytometry analysis with specific apoptosis and necrosis markers distinguished between early and late apoptotic, necrotic, and viable cells. RESULTS: Cell viability in HN5 and healthy keratinocyte cells decreased in cisplatin with low glucose groups compared to cisplatin and control groups. The same results were observed for healthy keratinocyte cells; only a decrease in cell viability in cisplatin groups compared to control groups was observed, which was not statistically significant. Cell apoptosis in HN5 and healthy keratinocyte cells increased in cisplatin with low glucose groups compared to cisplatin and control groups. In healthy keratinocyte cells, the cisplatin with low glucose group showed an impressive increase in necrosis, late apoptosis, and early apoptosis and a significant decrease in live cells compared with other groups. CONCLUSION: This study revealed that short-term fasting chemotherapy significantly improved HNSCC cell line apoptosis and necrosis.
Sujet(s)
Antinéoplasiques , Apoptose , Carcinome épidermoïde , Prolifération cellulaire , Survie cellulaire , Cisplatine , Jeûne , Kératinocytes , Humains , Cisplatine/pharmacologie , Cisplatine/effets indésirables , Lignée cellulaire tumorale , Kératinocytes/effets des médicaments et des substances chimiques , Kératinocytes/métabolisme , Survie cellulaire/effets des médicaments et des substances chimiques , Apoptose/effets des médicaments et des substances chimiques , Antinéoplasiques/pharmacologie , Antinéoplasiques/effets indésirables , Prolifération cellulaire/effets des médicaments et des substances chimiques , Carcinome épidermoïde/traitement médicamenteux , Carcinome épidermoïde/anatomopathologie , Tumeurs de la bouche/anatomopathologie , Tumeurs de la bouche/traitement médicamenteux , Carcinome épidermoïde de la tête et du cou/traitement médicamenteux , Carcinome épidermoïde de la tête et du cou/anatomopathologie , Carcinome épidermoïde de la tête et du cou/métabolismeRÉSUMÉ
This study aimed to investigate and analyze the medication use, fasting blood glucose control, and associated risk factors among residents with type 2 diabetes at the grassroots level in Xinjiang Production and Construction Corps. A multi-stage cluster sampling method was employed to conduct a questionnaire survey among residents aged 45 and above in battalions (communities) as the smallest unit. The medication use was recorded, and fasting blood glucose control was considered as the dependent variable. Logistic regression analysis was performed to identify the risk factors influencing fasting blood glucose control among different population characteristics. A total of 2316 participants were included in the study, of which 1072 were male (45.12%), 1418 were aged 65 and above (61.23%), 2031 were Han Chinese (87.69%), and 1551 were from the surrounding areas of Urumqi (66.97%). The main medications used among the top three classes were metformin, insulin, and α-glucosidase inhibitors. The treatment rate for type 2 diabetes was 71.80%, and the fasting blood glucose control rate was 27.98%. Multivariate analysis identified living outside the Urumqi surrounding area, age 65 and above, body mass indexâ ≥â 24, abnormal blood lipids, and untreated hypertension as independent risk factors for poor fasting blood glucose control, while treatment was a protective factor for achieving blood glucose control. The treatment rate and fasting blood glucose control rate among grassroots residents with type 2 diabetes in Xinjiang Production and Construction Corps need improvement. Efforts should be made to enhance patient medication adherence and health management awareness through education. Targeted interventions should be implemented for high-risk populations with identified risk factors to reduce or delay the occurrence of diabetes and its complications, ultimately aiming to reduce mortality rates and improve quality of life.
Sujet(s)
Glycémie , Diabète de type 2 , Régulation de la glycémie , Hypoglycémiants , Humains , Diabète de type 2/sang , Diabète de type 2/épidémiologie , Diabète de type 2/traitement médicamenteux , Mâle , Adulte d'âge moyen , Sujet âgé , Femelle , Facteurs de risque , Glycémie/analyse , Chine/épidémiologie , Hypoglycémiants/usage thérapeutique , Régulation de la glycémie/méthodes , Jeûne/sang , Metformine/usage thérapeutique , Insuline/usage thérapeutique , Enquêtes et questionnaires , Facteurs âges , Études transversales , Indice de masse corporelleRÉSUMÉ
In humans, α-tocopherol (α-TOC) is mainly stored in adipose tissue, where it participates in preventing damages induced by inflammation and reactive oxygen species. Factors, including genetic ones, that explain adipose tissue α-TOC concentration remain poorly understood. This study, therefore, aimed to characterize the interindividual variability of adipose tissue α-TOC concentration in healthy individuals and to identify single nucleotide polymorphisms (SNPs) associated with it. The study used a randomized cross-over design with 42 healthy adult males. α-TOC concentration was measured in fasting plasma and periumbilical adipose tissue samples, both at fast and 8 h after consumption of three standard meals. Partial least squares (PLS) regression was performed to identify SNPs associated with the interindividual variability of adipose tissue α-TOC concentration. Adipose tissue α-TOC concentration was not associated with fasting plasma concentration (Pearson's r = 0.24, 95% CI: [-0.08, 0.51]). There was a high interindividual variability of adipose tissue α-TOC concentration (CV = 61%). A PLS regression model comprising 10 SNPs in five genes (PPARG, ABCA1, BUD13, CD36, and MGLL) explained 60% (adjusted R2) of the variability of this concentration. The interindividual variability of adipose tissue α-TOC concentration in humans is due, at least partly, to SNPs in genes involved in α-TOC and triglyceride metabolism.
Sujet(s)
Études croisées , Polymorphisme de nucléotide simple , Graisse sous-cutanée , alpha-Tocophérol , Humains , Mâle , alpha-Tocophérol/sang , alpha-Tocophérol/métabolisme , Adulte , Graisse sous-cutanée/métabolisme , Jeune adulte , Jeûne , Membre-1 de la sous-famille A des transporteurs à cassette liant l'ATP/génétique , Membre-1 de la sous-famille A des transporteurs à cassette liant l'ATP/métabolisme , Antigènes CD36/génétique , Antigènes CD36/métabolisme , Volontaires sainsRÉSUMÉ
This study aimed to evaluate the influence of combined intermittent fasting (IF) and high-intensity interval training (HIIT) on morphology, caspase-independent apoptosis signaling pathway, and myostatin expression in soleus and gastrocnemius (white portion) muscles from healthy rats. Sixty-day-old male Wistar rats (n = 60) were divided into four groups: control (C), IF, high-intensity-interval training (T), and high-intensity-interval training and intermittent fasting (T-IF). The C and T groups received ad libitum chow daily; IF and T-IF received the same standard chow every other day. Animals from T and T-IF underwent a HIIT protocol five times a week for 12 weeks. IF reduced gastrocnemius mass and increased pro-apoptotic proteins apoptosis-inducing factor (AIF) and endonuclease G (EndoG) in soleus and cleaved-to-non-cleaved PARP-1 ratio and myostatin expression in gastrocnemius white portion. HIIT increased AIF and apoptosis repressor with caspase recruitment domain expression in soleus and cleaved-to-total PARP-1 ratio in gastrocnemius muscle white portion. The combination of IF and HIIT reduced fiber cross-sectional area in both muscles, increased EndoG and AIF expression, and decreased cleaved-to-non-cleaved PARP-1 ratio in gastrocnemius muscle white portion. Muscle responses to IF and HIIT are directly impacted by the muscle fiber type composition and are modulated, at least in part, by myostatin and caspase-independent apoptosis signaling.
Sujet(s)
Facteur inducteur d'apoptose , Apoptose , Jeûne , Entrainement fractionné de haute intensité , Fibres musculaires à contraction lente , Amyotrophie , Myostatine , Rat Wistar , Transduction du signal , Animaux , Mâle , Apoptose/physiologie , Jeûne/métabolisme , Jeûne/physiologie , Myostatine/métabolisme , Entrainement fractionné de haute intensité/méthodes , Rats , Transduction du signal/physiologie , Amyotrophie/métabolisme , Amyotrophie/anatomopathologie , Facteur inducteur d'apoptose/métabolisme , Fibres musculaires à contraction lente/métabolisme , Fibres musculaires à contraction rapide/métabolisme , Fibres musculaires à contraction rapide/anatomopathologie , Endodeoxyribonucleases/métabolisme , Conditionnement physique d'animal/méthodes , Conditionnement physique d'animal/physiologie , Muscles squelettiques/métabolisme , Jeûne intermittent , Poly (ADP-Ribose) polymerase-1RÉSUMÉ
In C. elegans mechanisms by which peripheral organs relay internal state information to the nervous system remain unknown, although strong evidence suggests that such signals do exist. Here we report the discovery of a peptide of the ancestral insulin superfamily called INS-7 that functions as an enteroendocrine peptide and is secreted from specialized cells of the intestine. INS-7 secretion is stimulated by food withdrawal, increases during fasting and acts as a bona fide gut-to-brain peptide that attenuates the release of a neuropeptide that drives fat loss in the periphery. Thus, INS-7 functions as a homeostatic signal from the intestine that gates the neuronal drive to stimulate fat loss during food shortage. Mechanistically, INS-7 functions as an antagonist at the canonical DAF-2 receptor and functions via FOXO and AMPK signaling in ASI neurons. Phylogenetic analysis suggests that INS-7 bears greater resemblance to members of the broad insulin/relaxin superfamily than to conventional mammalian insulin and IGF peptides. The discovery of an endogenous insulin antagonist secreted by specialized intestinal cells with enteroendocrine functions suggests unexpected and important properties of the intestine and its role in directing neuronal functions.
Sujet(s)
Protéines de Caenorhabditis elegans , Caenorhabditis elegans , Homéostasie , Insuline , Neurones , Animaux , Neurones/métabolisme , Neurones/effets des médicaments et des substances chimiques , Insuline/métabolisme , Caenorhabditis elegans/métabolisme , Protéines de Caenorhabditis elegans/métabolisme , Protéines de Caenorhabditis elegans/génétique , Récepteur à l'insuline/métabolisme , Récepteur à l'insuline/antagonistes et inhibiteurs , Transduction du signal/effets des médicaments et des substances chimiques , Encéphale/métabolisme , Encéphale/effets des médicaments et des substances chimiques , Neuropeptides/métabolisme , Facteurs de transcription Forkhead/métabolisme , Facteurs de transcription Forkhead/génétique , Intestins , Phylogenèse , Jeûne , Muqueuse intestinale/métabolismeRÉSUMÉ
BACKGROUND: Bariatric surgery is an effective treatment option for obesity and provides long-term weight loss and positive effects on metabolism, but the underlying mechanisms are poorly understood. Alterations in bile acid metabolism have been suggested as a potential contributing factor, but comprehensive studies in humans are lacking. METHODS: In this study, we analysed the postprandial responses of bile acids, C4 and FGF19 in plasma, and excretion of bile acids in faeces, before and after bariatric surgery in patients (n = 38; 74% females) with obesity with or without type 2 diabetes from the BARIA cohort. FINDINGS: We observed that total fasting plasma bile acid levels increased, and faecal excretion of bile acids decreased after surgery suggesting increased reabsorption of bile acids. Consistent with increased bile acid levels after surgery we observed increased postprandial levels of FGF19 and suppression of the bile acid synthesis marker C4, suggesting increased FXR activation in the gut. We also noted that a subset of bile acids had altered postprandial responses before and after surgery. Finally, fasting plasma levels of 6α-hydroxylated bile acids, which are TGR5 agonists and associated with improved glucose metabolism, were increased after surgery and one of them, HDCA, covaried with diabetes remission in an independent cohort. INTERPRETATION: Our findings provide new insights regarding bile acid kinetics and suggest that bariatric surgery in humans alters bile acid profiles leading to activation of FXR and TGR5, which may contribute to weight loss, improvements in glucose metabolism, and diabetes remission. FUNDING: Novo Nordisk Fonden, Leducq Foundation, Swedish Heart-Lung Foundation, Knut and Alice Wallenberg Foundation, the ALF-agreement, ZonMw.
Sujet(s)
Chirurgie bariatrique , Acides et sels biliaires , Diabète de type 2 , Facteurs de croissance fibroblastique , Obésité , Humains , Diabète de type 2/métabolisme , Diabète de type 2/chirurgie , Diabète de type 2/sang , Acides et sels biliaires/métabolisme , Acides et sels biliaires/sang , Chirurgie bariatrique/méthodes , Femelle , Mâle , Obésité/chirurgie , Obésité/métabolisme , Obésité/sang , Adulte d'âge moyen , Adulte , Facteurs de croissance fibroblastique/sang , Facteurs de croissance fibroblastique/métabolisme , Période post-prandiale , Marqueurs biologiques , Fèces/composition chimique , Cinétique , JeûneRÉSUMÉ
The stability of brain functions is mainly determined by the energy management of the cells, and mental health is, therefore, profoundly affected by metabolic dysfunctions and immune and inflammatory processes. Research sheds light on more and more details and connections about the efficacy of diet and exercise, based on which we can develop effective metabolic interventions. The roots of this discipline, which is emerging today, go back to thousands of years of traditions and hundreds of years of documented observations. This paper reviews the role of mitochondria in healthy cell functions, in the distress cascade, and in the neurobiology of mental illnesses, as well as the modern knowledge related to metabolic interventions that support mitochondrial function, the therapeutic fasting, the ketogenic diet therapy, the regular exercise, and the use of nutritional supplements, and finally discusses the role of metabolic interventions in curing psychiatric diseases and improving mental health. The purpose of metabolic psychiatric interventions is to prevent neuroprogression in the broad sense, if it is already developing, to stop it, to break it, to restore the degraded functions, as a supplement to the usual psychosocial, pharmacological, somatic and neuromodulation treatments.
Sujet(s)
Régime cétogène , Troubles mentaux , Humains , Troubles mentaux/thérapie , Troubles mentaux/métabolisme , Troubles mentaux/diétothérapie , Mitochondries/métabolisme , Exercice physique , Compléments alimentaires , Psychiatrie , Jeûne/métabolisme , Encéphale/métabolisme , Santé mentaleRÉSUMÉ
INTRODUCTION: High blood glucose levels in individuals with diabetes mellitus (DM) can lead to various complications, highlighting the need for adequate management. Diabetes Self-Management Education has been proven effective in controlling glycaemic events and preventing DM complications. Telenursing is a promising method for educating DM patients. This study aimed to determine the effectiveness of cell phone-based telenursing on fasting blood glucose (FBG) levels of people with DM. MATERIALS AND METHODS: This study used a quasiexperimental on 84 participants with DM, which was randomised into intervention (n=42) and control (n=42) groups. The intervention group was provided with health education through booklets and cell phone-based telenursing for four sessions and four sessions of follow-up, while the control group was given health education according to standards from the health centre (Puskesmas). All respondents had their FBG levels checked before, one month, and two months follow-up. The data were analysed using paired sample t-tests, independent samples t-test, and repeated ANOVA. RESULTS: The mean FBG measurements in the intervention group prior to treatment were 210.88mg/dL, decreased to 173.21mg/dL in the first month, and 177.48mg/dL in the second month (follow-up), while the control group started at 206.36mg/dL, decreased to 182.55mg/dL in the first month, and 191.64mg/dL in the second month. The difference between the two groups was not significant in both the intervention and control groups, p=0.181. CONCLUSION: Health education through mobile phone-based telenursing and standard health centres both affect FBG levels of people with DM.
Sujet(s)
Glycémie , Diabète , Télénursing , Humains , Mâle , Femelle , Adulte d'âge moyen , Glycémie/analyse , Adulte , Diabète/sang , Diabète/thérapie , Jeûne/sang , Téléphones portables , Sujet âgé , Éducation du patient comme sujetRÉSUMÉ
The ependyma lining the third ventricle (3V) in the mediobasal hypothalamus plays a crucial role in energy balance and glucose homeostasis. It is characterized by a high functional heterogeneity and plasticity, but the underlying molecular mechanisms governing its features are not fully understood. Here, 5481 hypothalamic ependymocytes were cataloged using FACS-assisted scRNAseq from fed, 12h-fasted, and 24h-fasted adult male mice. With standard clustering analysis, typical ependymal cells and ß2-tanycytes appear sharply defined, but other subpopulations, ß1- and α-tanycytes, display fuzzy boundaries with few or no specific markers. Pseudospatial approaches, based on the 3V neuroanatomical distribution, enable the identification of specific versus shared tanycyte markers and subgroup-specific versus general tanycyte functions. We show that fasting dynamically shifts gene expression patterns along the 3V, leading to a spatial redistribution of cell type-specific responses. Altogether, we show that changes in energy status induce metabolic and functional switches in tanycyte subpopulations, providing insights into molecular and functional diversity and plasticity within the tanycyte population.
Sujet(s)
Cellules épendymogliales , Jeûne , Métabolisme lipidique , Neurones , Animaux , Cellules épendymogliales/métabolisme , Mâle , Jeûne/métabolisme , Souris , Neurones/métabolisme , Épendyme/métabolisme , Épendyme/cytologie , Hypothalamus/métabolisme , Hypothalamus/cytologie , Souris de lignée C57BL , Métabolisme énergétique , Troisième ventricule/métabolisme , Glucose/métabolismeRÉSUMÉ
Aging and obesity are intertwined in a vicious circle that leads to declining general and brain-specific functions. Kapogiannis and colleagues demonstrate that implementing just 8 weeks of two distinct low-calorie regimes can enhance cognition and biochemical markers of aging in older people with obesity.
Sujet(s)
Vieillissement , Encéphale , Jeûne , Humains , Encéphale/métabolisme , Jeûne/physiologie , Vieillissement/physiologie , Obésité/métabolisme , Cognition/physiologie , Restriction caloriqueRÉSUMÉ
The brain controls energy homeostasis by regulating food intake through signaling within the melanocortin system. Whilst we understand the role of the hypothalamus within this system, how extra-hypothalamic brain regions are involved in controlling energy balance remains unclear. Here we show that the melanocortin 3 receptor (MC3R) is expressed in the paraventricular nucleus of the thalamus (PVT). We tested whether fasting would change the activity of MC3R neurons in this region by assessing the levels of c-Fos and pCREB as neuronal activity markers. We determined that overnight fasting causes a significant reduction in pCREB levels within PVT-MC3R neurons. We then questioned whether perturbation of MC3R signaling, during fasting, would result in altered refeeding. Using chemogenetic approaches, we show that modulation of MC3R activity, during the fasting period, does not impact body weight regain or total food intake in the refeeding period. However, we did observe significant differences in the pattern of feeding-related behavior. These findings suggest that the PVT is a region where MC3R neurons respond to energy deprivation and modulate refeeding behavior.
Sujet(s)
Jeûne , Neurones , Noyau paraventriculaire de l'hypothalamus , Récepteur de la mélanocortine de type 3 , Animaux , Jeûne/physiologie , Neurones/métabolisme , Neurones/physiologie , Récepteur de la mélanocortine de type 3/métabolisme , Récepteur de la mélanocortine de type 3/génétique , Souris , Noyau paraventriculaire de l'hypothalamus/métabolisme , Noyau paraventriculaire de l'hypothalamus/physiologie , Mâle , Comportement alimentaire/physiologie , Consommation alimentaire/physiologie , Noyaux médians du thalamus/physiologie , Noyaux médians du thalamus/métabolisme , Métabolisme énergétique , Souris de lignée C57BL , Transduction du signalRÉSUMÉ
Background: Diabetes mellitus (DM) is a global public health problem characterized by an elevated blood glucose level. Monitoring blood sugar levels is vital for effective diabetes management and preventing complications. However, the association between longitudinal biomarkers and the incidence of diabetic complications is often overlooked. Therefore, this study aimed to assess the incidence of diabetic retinopathy, predictors, and association with longitudinal fasting blood sugar level changes among diabetes mellitus patients in Ethiopia. Methods: A multicenter retrospective follow-up study was carried out in referral hospitals in Amhara region, Ethiopia. A random sample of 462 newly diagnosed DM patients was selected. The proportional hazard assumption was checked for the survival sub-model, and for the longitudinal sub-model, the normality assumption was checked. Then the joint modeling with time-dependent lagged parameterizations was fitted. Model assumptions and comparisons were checked. Finally, the hazard ratio with a 95% confidence interval (CI) with a corresponding P-value<0.05 was used to identify predictors. Results: In this study, Overall, 54 patients developed DR, and the incidence rate was 2.33 per 1000 person-months over the follow-up period, with a 95% CI of [1.78, 3.05]. Rural residence (AHR = 2.21, 95% CI: [1.21, 4.05]), hypertension co-morbidity (AHR = 3.01, 95% CI: [1.85, 6.53]), and longer duration of DM (>5 years) (AHR = 2.28, 95% CI: [1.91, 5.15]) were important predictors for the incidence of DR. In addition, the incidence of DR was substantially correlated with the time-dependent lagged value of FBS change (AHR = 4.20, 95% CI [1.62, 10.85]). Conclusions: In this study, the incidence of diabetic retinopathy was somewhat high when compared to prior similar studies in Ethiopia. A joint model of longitudinal fasting blood sugar level changes was significantly associated with an increased risk of DR. Besides, being rural residence, hypertension co-morbidity, and a longer duration of DM were significant predictors for the incidence of DR. Therefore, public awareness, an integrated care approach, and prioritizing glycemic control are highly recommended.
Sujet(s)
Glycémie , Rétinopathie diabétique , Jeûne , Humains , Éthiopie/épidémiologie , Femelle , Mâle , Incidence , Glycémie/analyse , Glycémie/métabolisme , Rétinopathie diabétique/épidémiologie , Rétinopathie diabétique/sang , Rétinopathie diabétique/étiologie , Adulte d'âge moyen , Études rétrospectives , Adulte , Études de suivi , Études longitudinales , Jeûne/sang , Facteurs de risque , Diabète/épidémiologie , Diabète/sang , Sujet âgé , Diabète de type 2/épidémiologie , Diabète de type 2/sang , Diabète de type 2/complicationsRÉSUMÉ
BACKGROUND: Acute pancreatitis following surgical or endoscopic procedures on the pancreas can compromise the outcome and lead to severe complications and even death. The aim of this study was to determine whether prolonged fasting affects the severity of acute pancreatitis (AP). METHODS: Male mice were divided into 4 groups: Group CF (n=5) control animals that fasted for 24 hours; Group CNF (n=5) control animals that did not fast; Group APF (n=7) that fasted for 24 hours and underwent induction of acute pancreatitis (AP) and Group APNF (n=7) that did not fast and underwent AP. Eight hours after AP blood was collected for evaluation of cytokines: IL-1ß, IL-6, IL-10, TNF-α and MCP-1. Liver tissue was collected for determination of Malondialdehyde, pancreatic tissue for determination of enzyme content and lung tissue for determination of myeloperoxidase. RESULTS: Significant increase in pancreatic amylase content was observed in group CF and increased serum levels of IL -6, Il-10 and MCP-1 were in group APF. Liver malondialdehyde was also increased in APF animals. APF group showed much more necrosis of the pancreatic acinar cells. CONCLUSION: In the present study, we observed an increase in the severity of acute pancreatitis with prolonged fasting in a severe acute pancreatitis model. These results suggest that in clinical practice, the preoperative fasting time should be shortened before pancreatic procedures.
Sujet(s)
Cytokines , Modèles animaux de maladie humaine , Jeûne , Pancréatite , Indice de gravité de la maladie , Animaux , Mâle , Pancréatite/étiologie , Pancréatite/prévention et contrôle , Souris , Cytokines/sang , Maladie aigüe , Malonaldéhyde/sang , Amylases/sang , Pancréas , Complications postopératoires/prévention et contrôleRÉSUMÉ
Background: Pancreatic cancer (PC) is a prevalent malignancy within the digestive system, with diabetes recognized as one of its well-established risk factors. Methods: Data on PC mortality attributed to high fasting blood sugar were retrieved from the Global Burden of Disease (GBD) study 2019 online database. To assess the temporal trends of PC burden attributable to high fasting plasma glucose (HFPG), estimated annual percentage changes (EAPCs) for age-standardized death rates (ASDRs) between 1990 and 2019 were determined using a generalized linear model. Furthermore, a Bayesian age-period-cohort (BAPC) model using the integrated nested Laplacian approximation algorithm was employed to project the disease burden over the next 20 years. Results: Globally, the crude death number of PC attributable to HFPG almost tripled (from 13,065.7 in 1990 to 48,358.5 in 2019) from 1990 to 2019, and the ASDR increased from 0.36/100,000 to 0.61/100,000 with an EAPC of 2.04 (95% CI 1.91-2.16). The population aged ≥70 years accounted for nearly 60% of total deaths in 2019 and experienced a more significant increase, with the death number increasing approximately fourfold and the ASDR increasing annually by 2.65%. In regions with different sociodemographic indexes (SDIs), the highest disease burden was observed in the high-SDI region, whereas more pronounced increasing trends in ASDR were observed in the low to middle-SDI, low-SDI, and middle-SDI regions. Additionally, a significantly negative association was found between EAPCs and ASDRs of PC attributable to HFPG from 1990 to 2019. Moreover, the BAPC model predicts that ASDR and age-standardized disability-adjusted life-years (DALYs) rate for PC attributed to HFPG was projected to increase obviously for men and women from 2019 to 2040. Conclusions: The burden of PC attributed to HFPG has increased globally over the past three decades, with the elderly population and high-SDI regions carrying a relatively greater disease burden, but more adverse trends observed in low-SDI areas. Furthermore, the burden is projected to continue increasing over the next 20 years. Hence, more tailored prevention methodologies should be established to mitigate this increasing trend.
Sujet(s)
Glycémie , Tumeurs du pancréas , Humains , Tumeurs du pancréas/mortalité , Tumeurs du pancréas/épidémiologie , Mâle , Femelle , Sujet âgé , Adulte d'âge moyen , Glycémie/analyse , Jeûne/sang , Adulte , Facteurs de risque , Sujet âgé de 80 ans ou plus , Charge mondiale de morbidité/tendances , Mortalité/tendancesRÉSUMÉ
BACKGROUND: Time-restricted eating (TRE) has been shown to be associated with improvements in some aspects of the metabolic syndrome. Nevertheless, only a few studies have addressed the effect of TRE on pulse wave velocity (PWV). We thus propose a randomized controlled trial to compare the effects of TRE with standard dietary advice on PWV and thereby present the protocol. METHODS: Forty-eight participants will be assigned to either TRE or control groups using simple randomization. The TRE group will consume their meals during a 10-h period and experience 14 h of fasting. They will also be advised to consume their last meal no later than 20:00. Both groups will receive standard dietary advice. The participants will be followed for 6 weeks. The primary outcome will be changes in PWV. Laboratory measurements, including lipid profile, liver enzyme tests, fasting blood glucose (FBG), insulin concentrations, and insulin resistance, as well as anthropometric data, blood pressure, basal metabolic rate, appetite status, physical activity level, sleep quality, cognitive function, quality of life, and calorie intake, will be evaluated throughout the study. DISCUSSION: The outcomes of this study will allow a comparison of the effects of TRE and standard dietary recommendations on PWV and other cardiometabolic factors in individuals with metabolic syndrome (MetS). TRIAL REGISTRATION: Iranian Registry of Clinical Trials; code: IRCT20201230049889N1; registered on August 14, 2022. The registration of the trial is accessible at: https://www.IRCT.ir/trial/64485?revision=281341 .
Sujet(s)
Jeûne , Syndrome métabolique X , Analyse de l'onde de pouls , Essais contrôlés randomisés comme sujet , Rigidité vasculaire , Humains , Syndrome métabolique X/physiopathologie , Syndrome métabolique X/diétothérapie , Syndrome métabolique X/sang , Mâle , Adulte d'âge moyen , Adulte , Facteurs temps , Résultat thérapeutique , Iran , Glycémie/métabolismeRÉSUMÉ
Aim: The potential of different foods to induce postprandial hyperinsulinemia may be involved in the development of metabolic syndrome (MetS). We aimed to evaluate the association between dietary insulin indices and MetS in a large population of adults in Iran. Methods: A total of 6356 adults aged 35-70 years were included in the present cross-sectional study. A validated block-format 125-item semiquantitative food frequency questionnaire (FFQ) was used to obtain usual food intakes, and MetS was defined according to the International Diabetes Federation (IDF) and American Heart Association (AHA)/National Heart, Lung, and Blood Institute (NHLBI) criteria. Results: MetS was prevalent in 13.8% of participants. Mean age of the study participants was 46.58 ± 8.82 years, and mean body mass index (BMI) was 25.02 ± 4.60 kg/m2. Mean dietary insulin index (DII) and dietary insulin load (DIL) were 63.15 ± 7.57 and 168.253 ± 52.09, respectively. In the crude model, men in the highest DIL quartile were more likely to have hyperglycemia than those in the lowest quartile (OR: 1.75, 95% CI: 1.12-2.73, p trend = 0.04). This association remained significant and was even stronger after adjusting for potential confounders in model I (OR: 3.64, 95% CI: 1.57-8.47, p trend = 0.005) and further adjustment for BMI in model II (OR: 3.61, 95% CI: 1.55-8.44, p trend = 0.006). Conclusions: In healthy men, adherence to a high-DIL diet may be associated with a greater likelihood of having hyperglycemia. No statistically significant association was observed between insulin indices and the odds of having MetS.
Sujet(s)
Glycémie , Régime alimentaire , Jeûne , Insuline , Syndrome métabolique X , Humains , Mâle , Adulte d'âge moyen , Adulte , Iran/épidémiologie , Insuline/sang , Glycémie/métabolisme , Sujet âgé , Jeûne/sang , Syndrome métabolique X/sang , Syndrome métabolique X/épidémiologie , Études de cohortes , Études transversales , Femelle , Indice de masse corporelleRÉSUMÉ
This bioequivalence research aims to evaluate the relative bioavailability and pharmacokinetic characteristics of ethinyl estradiol and drospirenone in the test preparation in comparison to the reference preparation during fasting conditions. A liquid chromatography method with tandem mass spectrometry was used to determine the concentrations of drospirenone and ethinyl estradiol in plasma. The pharmacokinetic parameters that were analyzed were the maximum plasma concentration (Cmax), time to achieve Cmax (tmax), elimination half life, and area under the concentration time curve of plasma (AUC0-t, AUC0-∞ for ethinyl estradiol, and AUC0-72h for drospirenone). Both the AUC and Cmax parameters were determined to be between 80.00% and 125.00% (90% confidence intervals), which is the acceptable range. Based on the study findings, it was concluded that the test formulation, which includes 3 mg of drospirenone and 0.03 mg of ethinyl estradiol, demonstrated bioequivalence when compared to the reference formulation.