Serum Adrenocorticotropic Hormone Research Articles

Stress-induced coronary spasms: evaluating the role of serum cortisol in variant angina

Abstract Background and purpose Variant angina is a type of angina pectoralis caused by vasospasm, and the patients were recommended to take lifelong medication to suppress spasms. In addition to risk factors, mental stress can be a precipitating factor in vasospasm. We can analyze whether mental stress can affect vasospasm by analyzing the relationship between serum cortisol levels, the major stress hormone, and coronary artery vasospasm. Methods We prospectively enrolled patients who were admitted for coronary angiography from October 2022 to August 2023. We divided them into 2 groups: variant angina and those who had other angiographic findings such as insignificant, stable angina, unstable angina, or non ST segment elevation myocardial infarction. The primary endpoint was the norepinephrine, cortisol, and adrenocorticotropic hormone (ACTH) level at admission, cortisol and ACTH level at Day 1 after admission, and after discharge when visiting the outpatient clinic. We used students' t-tests to examine the differences between groups. Results A total of 196 patients were enrolled, and 23 patients were diagnosed with variant angina. The variant angina group showed significantly higher serum cortisol levels on Day1 than the other diagnosis group (10.1±3.4 µg/dL vs. 8.4±4.1 µg/dL, p-value 0.044). There were no significant differences between baseline norepinephrine, ACTH, cortisol levels, Day 1 ACTH, and serum ACTH, cortisol levels after discharge. However, the serum cortisol levels showed an increased trend than other diagnosis group (baseline cortisol 9.7±3.5 vs. 8.3±4.1, p-value 0.082; after discharge cortisol 9.3±2.7 vs. 8.6±3.6, p-value0.294). Conclusions The variant angina group had a higher level of serum cortisol level than other diagnosis groups. Also, this trend was sustained at baseline and after discharge. Further research with a large cohort is warranted.

Evaluation of anterior pituitary hormone levels in patients with atrial fibrillation

Aim: The risk of ischemic stroke is increased 5-fold in patients with atrial fibrillation (the most common reason for cardiac arrhythmia). The aim is to investigate whether insufficiency in anterior pituitary hormones develops in patients diagnosed with atrial fibrillation and no history of cerebrovascular accident. Method: A group of 65 patients with chronic /paroxysmal atrial fibrillation without a history of cerebrovascular accident and a group of 65 healthy controls without arrhythmia were included in this study. Atrial fibrillation was diagnosed by electrocardiography or 24-hour rhythm holter. Demographic data, biochemical tests, echocardiography findings were compared between the groups. P<0.05 was considered statistically significant. Results: There was no statistical difference in gender and age distribution between groups (p<0.05). (Patient group: Mean age 68 ± 7 years (16 (24.6%) male and 49 (75.4%) female) / Control group: Mean age 67 ± 6 years (18 (27.7%) male and 47 (72.3%) female). Serum insulin-like growth factor-1, adrenocorticotropic hormone and cortisol levels were significantly lower in the patient group compared to the control group (p=0.048, p=0.005, p=0.023). There was no significant difference in serum thyroid-stimulating hormone, follicle-stimulating hormone, luteinizing hormone, and prolactin levels between groups. Left atrial diameter and left ventricular end-diastolic diameter were higher in the patient group (p<0.0001). The left ventricular ejection fraction value was lower in the patient group (p<0.0001). Conclusion: It was thought that the reason for the low level of insulin-like growth factor-1 in the setting of normal liver and kidney functions and simultaneous cortisol and adrenocorticotropic hormone deficiency, in patients with atrial fibrillation with no history of cerebrovascular accident might be due to silent cerebral ischemia leading to pituitary dysfunction.

Yeast Extract Peptides Alleviate Depression in Chronic Restraint Stress Rats by Alleviating Hippocampal Neuronal Apoptosis and Dysbiosis of the Gut Microbiota.

Depression as a global neurological disorder, and hippocampal neuronal apoptosis and disorders of the gut microbiota are closely related to it. This study aims to expose the ameliorative effect of enzyme peptides (AP) from brewer's yeast on depressive behavior caused by chronic restraint stress (CRS) in rats. After 4 weeks of AP intervention, a significant alleviation of depressive behavior in the sucrose preference test (SPT), forced swim test (FST), and light-dark test (LDT) is observed in depressed rats. AP ameliorates neuronal damage with increased the expression of the key CREB/BDNF/TrkB/Akt signaling pathway, which increases the levels of the monoamine neurotransmitters 5-hydroxytryptamine (5-HT) and norepinephrine (NE) in the hippocampus, buffering hyperactivity of the hypothalamo-pituitary-adrenal axis (HPA), and decreasing the serum cortisol (CORT) and adrenocorticotropic hormone (ACTH) levels in rats. In addition, AP modulates the disruption of the rat gut microbiota by chronic restraint stress (CRS), and the changes in the abundance of Lactobacillus animalis and Lactobacillus johnsonii are probably the key for AP performing antidepressant benefits. A strong correlation is found between gut microbiota and biochemical markers of depression. AP, as a natural and safe active substance, has a positive effect in the treatment of depression.

Lacticaseibacillus paracasei 207-27 alters the microbiota-gut-brain axis to improve wearable device-measured sleep duration in healthy adults: a randomized, double-blind, placebo-controlled trial.

Objective: Probiotics have been reported to exert beneficial effects on sleep through the gut-brain axis. Therefore, this randomized, double-blind, placebo-controlled trial assessed the effects of Lacticaseibacillus paracasei 207-27 supplementation on sleep quality and its safety and potential mechanisms. Method and study design: Healthy adults under mild stress aged 18-35 years consumed low or high doses of L. paracasei 207-27 or a placebo for 28 days. Fecal samples, blood samples, and questionnaires were collected at the baseline and the end of the intervention. Sleep quality was measured using wearable devices and Pittsburgh sleep quality index (PSQI) questionnaire. Serum inflammatory markers, corticotropin-releasing hormone, adrenocorticotropic hormone (ACTH), cortisol (COR), γ-aminobutyric acid, and 5-hydroxytryptamine levels were detected using enzyme-linked immunosorbent assay. The gut microbiota was analyzed using 16S rRNA sequencing and bioinformatics. Short-chain fatty acids levels were detected using gas chromatography-mass spectrometry. Results: Both the low-dose and high-dose groups exhibited significant improvements in wearable device- measured sleep duration compared to the placebo group. The global scores of PSQI in three groups significantly decreased after intervention without statistical difference between groups. At the phylum level, the low-dose group exhibited a higher relative abundance of Bacteroidota and a lower Firmicutes-to-Bacteroidetes (F/B) ratio. At the genus level, two treatment groups had higher relative abundance of Bacteroides and Megamonas, alongside lower levels of Escherichia-Shigella. Furthermore, the low-dose group exhibited significant increases in acetic acid, propionic acid, butyric acid, and valeric acid levels, while two treatment groups exhibited a significant decrease in COR levels. Correlation analysis revealed that the increased levels of acetic acid and butyric acid in the low-dose group may be associated with decreased ACTH. Conclusion: L. paracasei 207-27 administration in healthy adults resulted in improvements in gut microbiota community and sleep duration. The mechanisms might involve modulation of the gut microbiota structure to regulate the function of the gut-brain axis, including increases in SCFA levels and decreases in hypothalamic-pituitary-adrenal axis activity. The Chinese clinical trial registry number is ChiCTR2300069453 (https://www.chictr.org.cn/showproj.html?proj=191193, registered 16 May 2023 - retrospectively registered).

Relationship Between the Serum Cortisol, Insulin, Adrenocorticotropic Hormone (ACTH), and Blood Glucose Levels of Pregnant Women With Gestational Diabetes Mellitus in the Kingdom of Bahrain.

Background Gestational diabetes mellitus (GDM) can be defined as hyperglycemia that develops during pregnancy. GDM poses both maternal and fetal potential risks.Elevated maternal cortisol levels have been linked to maternal hyperglycemia and insulin resistance. The present study aimed to investigate the relationship between GDM and serum cortisol levels in Bahraini and non-Bahraini pregnant women in the Kingdom of Bahrain. We also investigated the relationship between age and ethnicity in the development of GDM. Methods Data were collected from a total of 75 pregnant women; 41 of which were diagnosed with GDM and 34 had normal blood glucose levels. Serum cortisol, insulin, adrenocorticotropic hormone (ACTH), fasting (FBG), and random (RBG) blood glucose levels were measured. Results FBG, RBG, and insulin blood levels were significantly higher in the GDM group when compared to the control group. Serum cortisol and ACTH levels tended to be higher in the GDM group; however, they were statistically insignificant. Within the GDM group, there were no statistically significant differences in serum insulin, cortisol, and ACTH levels between Bahraini and non-Bahraini patientsor between patients less than or more than 30 years old. Conclusion Our results suggest that cortisol may not have a major role in the development of GDM in our patients. Further research is needed to confirm these results. This study highlights the necessity to better understand the underlying mechanisms of the development of GDM in pregnant women.

Regulation of 11β-HSD1 reductase and the HPA axis by long-snake moxibustion in kidney-yang deficiency rats

BackgroundLong-snake moxibustion can improve hypothalamic-pituitary-adrenal (HPA) axis function in patients with kidney-yang deficiency (KYDS). 11β-HSD1 controls the HPA axis by boosting CORT production via reductase activity. However, the interaction and mechanism of long snake moxibustion and 11β-HSD1 remain unknown. This study examined the impact of lengthy snake moxibustion on the hypothalamus-pituitary-adrenal axis in KYDS rats. The potential significance of 11β-HSD1 in this process was explored. MethodsRats were randomly divided into two groups: the blank group and the experimental group. The KYDS model was established with an intramuscular injection of hydrocortisone. Rats were randomly assigned to four groups: model, sham intervention, long snake moxibustion, and long snake moxibustion plus 11β-HSD1 inhibitor. Physical indicators included body weight, toe temperature, rectal temperature, and spontaneous movement. The serum levels of corticotropin-releasing hormone (CRH), adrenocorticotropic hormone (ACTH), and CORT were measured. Immunohistochemical examination reveals 11β-HSD1 protein expression in the liver. Western blotting (WB) detected the levels of 11β-HSD1, H6PDH and NADPH/NADP + protein in the liver. ResultsThe experimental rats' body weight, toe temperature, rectal temperature, time and frequency of spontaneous activity all dropped, as did their serum ACTH, CORT, and CRH levels. The protein expressions of 11β-HSD1, H6PDH, and NADPH/NADP+ in the liver decreased significantly. Long-snake moxibustion improved HPA axis function in rats, boosting expression of 11β-HSD1, H6PDH, and NADPH/NADP+. Adding an 11β-HSD1 inhibitor to Long-snake moxibustion decreased its effect on the HPA axis. ConclusionLong-snake moxibustion improves KYDS symptoms in rats by increasing 11β-HSD1 expression and reductase activity, which regulates the HPA axis.

Investigation of effect peripheral kisspeptin treatment on hypothalamo-pituitary-gonadal axis and hypothalamo-pituitary-adrenal axis in male rats.

Kisspeptin is an endogenous peptide hormone that is the most potent stimulator of the hypothalamo-pituitary-gonadal (HPG) axis. The HPG axis can be suppressed by the activation of the hypothalamo-pituitary-adrenal (HPA) axis. The physiological role of kisspeptin in the interaction of the HPG axis and the HPA axis is not fully understood yet. The purpose of the current study was to investigate the possible effects of peripheral injection (intraperitoneally) of kisspeptin on HPG axis and HPA axis activity as well. Adult male Wistar rats were randomly divided into seven groups as sham (control), kisspeptin(10nmol), p234 (10nmol), kisspeptin + p234, kisspeptin + antalarmin (10mg/kg), kisspeptin + astressin2b (100μg/kg), and kisspeptin + atosiban (0.250mg/kg) (n = 10 each group). At the end of the experiment, the hypothalamus, pituitary gland, and serum samples of the rats were collected. Serum follicle-stimulating hormone and luteinizing hormone levels of the kisspeptin, kisspeptin + antalarmin and kisspeptin + astressin2b groups were significantly higher than the control group. Serum testosterone levels were significantly higher in the kisspeptin, kisspeptin + antalarmin, kisspeptin + astressin2b, and kisspeptin + atosiban groups that compared to the control group. There was no a significant difference in corticotropic releasing hormone immunoreactivity in the paraventricular nucleus of the hypothalamus, serum adrenocorticotropic hormone and corticosterone concentrations among all groups. Moreover, no significant difference was found in the concentration of pituitary oxytocin. Our results suggest that peripheral kisspeptin injection induces an activation in the HPG axis, but not in the HPA axis in male rats.

Electroacupuncture negatively regulates the Nesfatin-1/ERK/CREB pathway to alleviate HPA axis hyperactivity and anxiety-like behaviors caused by surgical trauma

BackgroundHyperactivity of the hypothalamic–pituitary–adrenal (HPA) axis constitutes a pivotal response by surgical trauma, manifesting as a critical aspect of the acute stress reaction. This hyperactivity resulted in adverse surgical outcomes and is often associated with increased postoperative anxiety. Increased evidence suggests that Nesfatin-1 plays a crucial role in stress responses and stress-related psychiatric disorders. Electroacupuncture (EA) is widely used to alleviate stress responses and anxiety, although its mechanism of action remains unclear. This study aimed to assess the mechanisms by which hypothalamic Nesfatin-1 contribute to the alleviation of HPA axis hyperactivity and anxiety by EA.MethodsPartial hepatectomy (HT) was performed to simulate surgical trauma, and EA was applied at Zusanli (ST36) and Sanyinjiao (SP6). The levels of hypothalamic Nesfatin-1, c-Fos, and corticotropin-releasing hormone (CRH) were detected, and serum adrenocorticotropic hormone (ACTH) and corticosterone (CORT) were regarded as indicators of HPA axis activity. Anxiety levels were assessed through open field tests (OFT), elevated plus maze (EPM), and light–dark box tests (LDBT). To investigate the role of Nesfatin-1, its expression was modulated using stereotactic viral injections or plasmid transfections. Transcriptome sequencing was employed to explore the downstream signaling pathways of Nesfatin-1. Additionally, brain cannula implantation was performed to facilitate targeted drug administration.ResultsOur findings demonstrated that EA reduced the hypothalamic overexpression of CRH and Nesfatin-1, as well as serum levels of ACTH and CORT. Additionally, it alleviated anxiety-like behaviors resulting from surgical trauma. We observed that overexpression of Nesfatin-1 in the hypothalamic paraventricular nucleus (PVN) triggered hyperactivity of the HPA axis and anxiety. Conversely, knocking down Nesfatin-1 in the PVN reversed these effects caused by surgical trauma. Transcriptome sequencing identified the extracellular regulated protein kinases (ERK)/cAMP-response element binding protein (CREB) pathway as a key mediator in the impacts of surgical trauma and EA on the hypothalamus. Both in vivo and in vitro studies showed that overexpression of Nesfatin-1 activated the ERK/CREB pathway. Furthermore, administering ERK or CREB inhibitors into the PVN mitigated HPA axis hyperactivity and anxiety-like behaviors induced by surgical trauma. Finally, EA was observed to decrease the phosphorylation levels of ERK and CREB in the PVN.ConclusionEA alleviates HPA axis hyperactivity and anxiety-like behaviors caused by surgical trauma through inhibition of Nesfatin-1/ERK/CREB pathway in the hypothalamus.

Effect of crowding stress on liver health, gut permeability and gut microbiota of genetically improved farmed tilapia (GIFT, Oreochromis niloticus)

This study investigated the effects of crowding stress on liver and gut health in genetically improved farmed tilapia (GIFT, Oreochromis niloticus). Fish averaging 18.90 ± 0.01 g were reared at low (LD, 5 g/L) or high densities (HD, 100 g/L) for 14 days. The analysis revealed that the HD group significantly increased serum cortisol, glucose and adrenocorticotropic hormone (ACTH) levels in GIFT (P < 0.05). Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were elevated in the HD group (P < 0.05). TUNEL staining of liver tissues revealed that the fluorescence intensity indicating apoptosis was significantly higher in the HD group (P < 0.05). Additionally, the HD group exhibited increased expression of p53 and Caspase3 in the liver (P < 0.05). In comparison to the LD group, the HD group showed a significant increase in gut superoxide dismutase (SOD) and catalase (CAT) activities, as well as malondialdehyde (MDA) content (P < 0.05). The expressions of inflammatory-related genes (tnfα, il-1β, il-8, and il-6) and pro-apoptotic genes (p53 and Caspase7) were significantly upregulated in the gut of the HD group (P < 0.05). Serum contents of D-lactate and diamine oxidase (DAO) were significantly elevated in HD group as comparison to LD group (P < 0.05), and significantly higher serum FITC-CM-dextran was observed in HD group versus LD group following oral gavage (P < 0.05). Furthermore, the HD group down-regulated the expressions of gut tight junction proteins (tjp2a, hif-1a, and zo-1) (P < 0.05), and significantly up-regulated the protein expression of phosphorylated myosin light chain 2 (P-MLC2) (P < 0.05). The 16S rDNA gene sequencing results indicated that the relative abundance of Cetobacterium was significantly lower (P < 0.05), and Enterovibrio and Weissella were significantly higher in the HD group (P < 0.05). Overall, crowding stress negatively affects GIFT liver and gut health, which is caused by inducing hepatic and intestinal apoptosis, impairing intestinal barrier function, and disrupting the gut microbiota.

Effect of Virtual Reality Glasses and Melody on Cortisol and Adrenocorticotropic Hormone Levels in Patients With Knee Replacement Surgery Under Combined Spinal Epidural Anaesthesia.

With advanced virtual reality (VR) technology, its usage in health care is creating an impact on patient outcomes. Patients undergoing knee replacement surgery are already anxious due to the surgery, anaesthesia, and unfamiliar environment of the operation theatre. In addition to that, the unpleasant noise of tools makes it worse. Peri-operative anxiety correlates with increased anaesthesia requirements and prolonged recovery. It causes the release of stress hormones such as cortisol, adrenaline, and norepinephrine, which can lead to difficult intravascular access due to vasoconstriction and heightened cardiovascular responses. Studies on music therapy have shown a reduction in cortisol levels, contributing to anxiety alleviation. VR glasses create immersive environments to distract patients from various stress factors. Investigating the use of VR/music on serum cortisol and adrenocorticotropic hormone (ACTH) levels in knee replacement surgery can improve peri-operative care, improving patient outcomes. The study was done to investigate the impact of virtual reality glasses and music therapy on serum cortisol and ACTHlevels in patients undergoing knee replacement surgery under combined spinal epidural anaesthesia. In this prospective randomised control, single-centric study, patients of either sex, aged between 18 and 65 years, undergoing knee replacement surgery under combined spinal and epidural (CSE) anaesthesia, were included. The primary objective was to compare serum cortisol and ACTH levels, while the secondary objective was to compare the State-Trait Anxiety Inventory for State Anxiety (STAI-SA) score and Patient Satisfaction Score (PSS) in the peri-operative period. A total of 100 patients were assessed for eligibility, and 66 patients met the inclusion and exclusion criteria and were finally randomised and equally assigned to group M-VR (music-virtual reality) and group C (control). Three blood samples were collected for serum cortisol and serum ACTH levels one hour before surgery (T1), one hour after skin incision (T2), and two hours after the completion of surgery (T3). STAI-SA was measured one hour before surgery (T1) and two hours after the completion of surgery (T2), while PSS was recorded two hours after the completion of surgery. Hemodynamic parameters were noted during the entire peri-operative period. The demographic and anthropometric parameters were comparable in both groups. Hemodynamic parameters (heart rate [HR], mean arterial pressure [MAP]) were found to be comparable in the pre-operative period, while significant differences (p > 0.05) were noted after 30 minutes of surgery and continued till the end of surgery. Serum cortisol and serum ACTH levels were comparable in the pre-operative period but showed significantly lower variations in group M-VR in comparison to group C in the intra-operative period. PSS was significantly higher in group M-VR in comparison to group C. This study substantiates the role of virtual reality and music therapy (VR/music) on anxiety reduction, improved satisfaction scores, and lesser ACTH/cortisol level variations in knee replacement surgery. It further emphasises larger randomised controlled studies in various other surgical populations, along with long-term follow-up and outcome assessment.

Observation on the Effect of Rapid Rehabilitation Nursing with Integrated Medical Care in Perioperative Period of Laparoscopic Appendicitis in Children.

Acute appendicitis is one of the most common causes of acute abdomen in pediatric surgery. The purpose of this study was to observe the effects of integrated rapid rehabilitation nursing in children with laparoscopic appendectomy (LA) during the perioperative period. A total of 200 children with appendicitis who underwent LA in our hospital from January 2022 to January 2023 were retrospectively selected as the study subjects. According to the nursing mode, they were divided into a control group (n = 100) and an observation group (n = 100). The control group was treated with routine nursing intervention, and the observation group was treated with an integrated rapid rehabilitation nursing intervention. Perioperative indices (operation time, first postoperative exhaust time, length of hospital stay) were recorded and compared between the two groups. The visual analog scale (VAS) was used to score the two groups at 6 h, 12 h, 24 h, and 48 h after surgery, and the pain degree of the children was quantitatively evaluated. The levels of serum stress response indices (cortisol (Cor), norepinephrine (NE), and adrenocorticotropic hormone (ACTH)) in the two groups were measured. The incidence of postoperative complications, improvement of postoperative quality of life, and nursing satisfaction were compared between the two groups. The operation time, first postoperative exhaust time, and hospitalization time in the observation group were significantly shorter than those in the control group (p < 0.05), and the VAS scores of the patients in the observation group were lower than those in the control group at each time point of 6 h, 12 h, 24 h, and 48 h after surgery (p < 0.05). One hour after surgery, the serum Cor, NE, and ACTH levels of the two groups of patients were significantly higher than those before surgery, and the levels for the observation group were significantly lower than those of the control group (p < 0.05). After treatment, the quality of life scores of patients in both groups was significantly higher than before treatment, and the quality of life scores of patients in the observation group was significantly higher than that of the control group (p < 0.05). The postoperative complication rate of the observation group was 3.00% (3/100), which was significantly lower than that of the control group (13.00% (13/100)) (χ2 = 6.793, p = 0.009). The nursing satisfaction of the observation group was 95.00% (95/100), which was significantly higher than that of the control group (79.00% (79/100)) (χ2 = 11.317, p = 0.001). The integrated rapid rehabilitation nursing management mode is an intervention that can effectively alleviate the effects of LA on stress reactions and pain in children with appendicitis. It can effectively reduce the incidence of postoperative complications and improve the patient's nursing satisfaction, allowing children with appendicitis to recover as soon as possible after surgery, and can improve patients' quality of life. It helps to improve the overall clinical efficacy, and the treatment process is simple to operate, relatively safe and reliable, has high use value, and is worthy of further promotion in clinical treatment.

Effects of different doses of dexmedetomidine combined with sufentanil in intravenous controlled analgesia after Salter osteotomy in children.

This study aimed to investigate the effect of different doses of dexmedetomidine combined with sufentanil on postoperative analgesia in developmental hip dislocation in children after Salter osteotomy. The clinical data of 98 children with developmental hip dislocation, who underwent Salter osteotomy in our center between January 2020 and February 2023, were selected. The children were randomly divided into four groups based on the application of patient-controlled intravenous analgesia (sufentanil + granisetron ± dexmedetomidine). All children received 1 µg/kg/day of sufentanil and 3 mg of granisetron. Group A did not receive dexmedetomidine, and Groups B, C, and D received 0.5, 0.75, and 1.0 µg/kg/day of dexmedetomidine, respectively. The pain indicators and immune factor levels of children in each group were compared. The heart rate (HR) and respiratory rate (RR) 2 h after operation in Groups C and D were significantly lower than those in Groups A and B (P < 0.05). The pain scores decreased over time after treatment in all groups. When compared at the same time point, children in Group D had the lowest pain scores, which were significantly lower than the other three groups (P < 0.05). The total consumption of sufentanil in Groups C and D was significantly lower than that in Group A (P < 0.05). On the first day after surgery, the children in Group D had lower levels of serum adrenocorticotropic hormone, interleukin-6, and corticosterone than those in Group A (P < 0.05). Administration of 1.0 µg/kg/day of dexmedetomidine combined with sufentanil in intravenous controlled analgesia after Salter osteotomy for developmental hip dislocation in children has a better analgesic effect, less consumption of sufentanil, and low incidence of opioid adverse reactions.

The effect of external fixator on bone metabolism in patients with open fracture of extremities.

This experiment aimed to explore the influence mechanism of external fixator on open fracture. A total of 128 patients with open tibiofibular fractures were included in this study. The patients were randomly divided into external fixator group (n=64) and control group (n=64) according to the order of admission. Double-blind controlled observation was used. The levels of osteocalcin (BGP), β-CTX, P1 NP, BALP, including haptoglobin (Hp), ceruloplasmin (CER), serum adrenocorticotropic hormone (ACTH), cortisol (COR), C-reactive protein (CRP), white blood cell (WBC) and interleukin-6 (IL-6) were recorded in different groups. The postoperative VAS score and quality of life were recorded. Log-rank was used to analyze the difference in postoperative adverse reaction rates among different groups. External fixation stent treatment increased BGP, PINP, and BALP expression and decreased β-CTX, Hp, CER, ACTH, COR, CRP, WBC, and IL-6 levels. Patients in the external fixation stent group had significantly lower VAS score quality of life scores and incidence of adverse events than the control group. External fixation stents protect open fracture patients by promoting bone metabolism.

Melatonin counteracts polyethylene microplastics induced adreno-cortical damage in male albino rats

There are various substances that can disrupt the homeostatic mechanisms of the body, defined as endocrine-disrupting chemicals (EDCs). The persistent nature of microplastics (MPs) is a cause for concern due to their ability to accumulate in food chains and widespread use, making their toxic effects particularly alarming. The potential of MPs for disrupting the endocrine system was observed in multiple tissues. Moreover, the adrenal gland is known to be extremely sensitive to EDCs, while with the effect of MPs on the adrenal gland has not previously been studied. This study aimed to highlight the potential polyethylene microplastics (PE-MPs) induced adreno-toxic effects rather than exploring the implicated mechanisms and concluding if melatonin (Mel) can afford protection against PE-MPs induced adreno-toxicity. To fulfill the goal, six groups of rats were used; control, Mel, PE-MPs (3.75 mg/kg), PE-MPs (15 mg/kg), PE-MPs (3.75 mg/kg) +Mel, and PE-MPs (15 mg/kg) +Mel. PE-MPs induced toxic changes in the adrenal cortex, which was evident by increased adrenal weight, histopathological examination, and ultrastructural changes detected by electron microscope. A reduction in serum cortisol and an increase in serum adrenocorticotropic hormone resulted from the adreno-toxic effects of PE-MPs. Mechanisms may include the reduction of steroidogenesis-related genes, as PE-MPs drastically reduce mRNA levels of StAR, Nr0b1, Cyp11A1, as well as Cyp11B1. Also, oxidative stress that results from PE-MPs is associated with higher rates of lipid peroxidation and decreased superoxide dismutase and glutathione. PE-MPs inflammatory effect was illustrated by elevated expression of IL-1β and NF-ķB, detected by immunohistochemical staining, in addition to increased expression of caspase-3 and mRNA of Bax, markers of proapoptotic activity. The impacts of PE-MPs were relatively dose-related, with the higher dose showing more significant toxicity than the lower one. Mel treatment was associated with a substantial amelioration of PE-MPs-induced toxic changes. Collectively, this study fills the knowledge gap about the MPs-induced adrenal cortex and elucidates various related toxic mechanisms. It also supports Mel’s potential protective activity through antioxidant, anti-inflammatory, anti-apoptotic, and gene transcription regulatory effects.

Effects of noise exposure on stress hormone changes during task performance in young Korean men: quasi-experimental study

ABSTRACT Numerous studies have suggested that noise exposure might be associated with changes in stress hormone levels. However, quantitative evidence for these effects in humans is rare and remains controversial. This study aimed to investigate the acute effects of exposure to noise and its different levels on stress hormone changes in task performance. Quasi-experimental noise exposure environment was established for 90 male university student volunteers in their twenties, and each was exposed to different noise levels during task performance. The stress hormones tested included cortisol, adrenocorticotropic hormone (ACTH), adrenaline, and noradrenaline. A one-way ANOVA was performed to investigate differences in hormone levels measured in the three groups according to the noise exposure levels (35, 45, or 75 dB). Analysis of covariance (ANCOVA) was used to adjust for confounding factors that might affect hormone levels. After adjusting for confounders, significant exposure-dependent differences were found in hormone levels in salivary cortisol, serum cortisol, serum ACTH, and serum adrenaline. The amount of hormonal increase in 75 dB exposure group compared to 35 or 45 dB groups was detected. Similar results were also seen in the rate of change analysis. Our findings indicate that short-term noise exposure during task performance elevates stress hormone levels. Further, the extent of stress hormone alterations varies with noise exposure levels. Changes in hormone levels are an objective measure that may be used to identify health effects and stress responses in various noise environments.

Tao-Hong-Si-Wu-Tang Improves the Depressive-like Behaviors in Mice Experiencing Perimenopausal Depression Through Modulating Activity of the Hypothalamic-Pituitary-Adrenal-Ovary Axis and Activating the BDNF-TrkB-CREB Signaling Pathway.

Tao-Hong-Si-Wu-Tang (THSWT), a traditional Chinese herbal remedy, is commonly utilized for the treatment of female perimenopausal depression through regulating menstruation, but the mechanism remains unknown. In this study, ICR mice were randomly divided into six groups: low, medium, and high dose of THSWT (0.5, 1.5, and 4.5 g/kg), soy isoflavone (250 mg/kg), ovariectomy group, and control group. All mice, except the control group, had ovaries removed and were exposed to hypoxic stimulation for 28 days to establish a perimenopausal depression mice model. The mice, having unrestricted access to food and water, were administered THSWT treatment for a duration of 14 days. The Western blotting and Enzyme linked immunosorbent assay kits were used to determine protein and hormone levels, respectively. Experimental results showed that THSWT reduced the immobility time of mice from 150.8 s to 104.9 s in the tail suspension test, and it decreased the immobility time of mice from 165.7 s to 119.0 s in the forced swimming test, outperforming the results obtained with soy isoflavones. In addition, THSWT upregulated the protein expression of follicle-stimulating hormone receptor and downregulated the protein expression of corticotropin-releasing hormone-receptor 1 in the hippocampus. Compared with the oophorectomized group, treatment with THSWT decreased the levels of corticosterone and adrenocorticotropic hormone in serum by 173.7 and 23.4 ng/mL, respectively. These findings showed that THSWT could stimulate the perimenopausal nerve tissue and regulate the level of serum hormones in mice. THSWT exhibited promising potential as a viable alternative drug for hormone treatment of perimenopause in clinical use.

Electroacupuncture can Modify Stress, Low-Grade Inflammation in the Duodenum, and Damage to the Intestinal Barrier in Rats with Functional Dyspepsia through the CRF Signaling Pathway

In the domain of functional gastrointestinal disorders, Functional Dyspepsia (FD) stands out due to its widespread occurrence internationally. Historically, electroacupuncture (EA) has been employed as a therapeutic modality for FD, demonstrating notable clinical efficacy. This research aimed to delve into the impact of EA on stress responses, minor duodenal inflammatory processes, and the integrity of the intestinal barrier within FD-affected rodent models while also elucidating the underlying mechanisms. Thirty-six male Wistar rats were evenly distributed into three cohorts: a normal, a modeled FD, and an EA treatment group. The FD condition in the rats, barring those in the normal, was induced through a series of multifactorial procedures. For the EA cohort, the rats received electroacupuncture at the acupoints RN12 (Zhongwan) and ST36 (Zusanli) for 20 minutes daily over a span of one week. The gastric residue rate (GRR), intestinal propulsion rate (IPR), and changes in emotional state were measured in each group of rats. Additionally, serum levels of corticotropin-releasing hormone (CRH), adrenocorticotropic hormone (ACTH), and corticosterone (CORT) were detected, and the duodenal inflammatory condition and intestinal mucosal barrier status were observed through staining and fluorescence. The expression levels of Claudin-1, Junctional Adhesion Molecule 1 (JAM-1), Corticotropin-Releasing Factor (CRF), and Corticotropin-Releasing Factor Receptor 1 (CRF-R1) were also detected. The study demonstrated that EA had a positive effect on body weight and food intake, GRR, and IPR in FD rats. Additionally, the EA group showed a decrease in serum levels of CRH, ACTH, and CORT, as well as a decrease in the number of duodenal mast cells and tryptase content. Furthermore, the expression of tight junction proteins Claudin-1 and JAM-1 was increased in the EA group compared to the model group. EA also reduced the levels of CRF and CRF-R1 in the hypothalamus and duodenum. EA has been shown to improve the stress state of FD rats, inhibit the activation of mast cells in the duodenum, and reduce low-grade inflammatory response and damage to the intestinal mucosal barrier. It is believed that EA achieves these effects by modulating the expression of CRF and its receptors in the brain-gut interaction pathway through the CRF signaling pathway. This provides a new approach to treating FD.

Paeoniflorin Alleviates Anxiety and Visceral Hypersensitivity via HPA Axis and BDNF/TrkB/PLCγ1 Pathway in Maternal Separation-induced IBS-like Rats.

Irritable Bowel Syndrome (IBS) is a prevalent gastrointestinal disorder that significantly diminishes the quality of life for affected individuals. The pathophysiology of IBS remains poorly understood, and available therapeutic options for IBS are limited. The crucial roles of brain-gut interaction, which is mediated by the Hypothalamic-Pituitary-Adrenocortical (HPA) axis and the autonomic nervous system in IBS, have attracted increasing attention. The objective of this study was to examine the impact of paeoniflorin (PF) on anxiety and visceral hypersensitivity in maternal separation-induced IBS-like rats. The IBS-like rat model was established through the implementation of Maternal Separation (MS) and subsequently subjected to various doses of PF administered via oral gavage for 14 days. Anxiety-like behavior was evaluated using the Open Field Test (OFT) and Elevated Plus Maze (EPM) test. The assessment of visceral sensitivity involved the utilization of the Abdominal Withdrawal Reflex (AWR) score and electromyographic (EMG) responses of the external oblique muscle in response to colorectal distention. The levels of adrenocorticotropic hormone (ACTH), corticosterone (CORT), and corticotrophin-releasing hormone (CRH) were examined by ELISA. Quantitative real-time PCR (qRT-PCR) and immunofluorescence were employed to detect the expressions of CRH receptors 1 (CRHR1) and 2 (CRHR2). Glucocorticoid receptors (GR), mineralocorticoid receptor (MR), brain-derived neurotrophic factor (BDNF), tyrosine receptor kinase B (TrkB), and phospholipase C γ1 (PLCγ1) were examined by Western blot. The results showed that MS induced anxiety-like behavior and visceral hypersensitivity, while PF treatment attenuated these changes. Furthermore, the HPA axis hyperactivity in MS rats was attenuated by PF treatment, indicated by reduced serum ACTH, CORT, and CRH levels and recovered hippocampal CRHR1 and GR expressions. In addition, PF inhibited BDNF/TrkB signaling by downregulating the protein levels of BDNF, TrkB, and phospho-PLCγ1 in the colon. These findings suggest that PF alleviated anxiety and visceral hypersensitivity in MS-induced IBS-like rats, which may be the modulation of HPA axis activity and BDNF/TrkB/PLCγ1 signaling pathway.

Coated sodium butyrate and vitamin D3 supplementation improve gut health through influencing intestinal immunity, barrier, and microflora in early-stage broilers.

Intestinal development and function are critical to maintaining sustained broiler growth. The present study aimed to evaluate the effects of coated sodium butyrate (CSB) and vitamin D3 (VD3) on the intestinal immunity, barrier, oxidative stress and microflora in early-stage broilers. In total, 192 one-day-old broilers were assigned to a 2 × 2 factorial design including two dietary supplements at two different levels, in which the main effects were VD3 (3000 or 5000 IU kg-1) and CSB (0 or 1 g kg-1). The results showed that CSB supplementation increased ileal goblet cells (GCs) numbers, villus height and decreased crypt depth in broilers. CSB increased ileal proliferating cell nuclear antigen expression and high-level VD3 decreased cluster of differentiation 3 expression. CSB reduced serum d-lactate, endotoxin (ET), adrenocorticotropic hormone, corticosterone and malondialdehyde (MDA) concentrations and increased total antioxidant capacity (T-AOC) level. Meanwhile, high-level VD3 decreased serum ET concentration. Furthermore, CSB increased ileal T-AOC, lysozyme (LYZ) and transforming growth factor (TGF)-β and decreased MDA, whereas high-level VD3 decreased ileal MDA and increased secretory immunoglobulin A. CSB up-regulated ileal claudin1, superoxide dismutase 1, TGF-β and LYZ mRNA expression and down-regulated interleukin-1β mRNA expression. CSB combined with high-level VD3 increased ileal Faecalibaculum abundance. Spearman correlation analysis showed that Faecalibaculum was related to the immune and barrier function. Dietary supplementation with CSB and high-level VD3 improved early gut health in broilers by promoting intestinal development, enhancing antioxidant capacity, strengthening barrier function and enhancing the favorable composition of the gut bacterial flora. © 2024 Society of Chemical Industry.

Protective effect of functional food containing Dendrobium officinale via mediation of the FSHR/PI3K/AKT signaling pathway on menopausal syndrome in rats

Menopausal symptoms are age-related disorders related to the deficiency of estrogen that can be influenced by emotional and dietary habits. Guocaoyin superior-national-functional food (GSNF), a traditional Chinese medicine primarily containing Dendrobium officinale, offers notable benefits for mitigating metabolic disorders caused by unhealthy diet. Currently, there is limited research on the impact of GSNF on menopausal syndrome, and its underlying pharmacological mechanisms remain poorly understood. The aim of this study was to evaluate the ameliorative effect of GSNF on menopausal syndrome and to investigate its effect on endocrine metabolic disorders induced by ovarian failure. The findings demonstrate that GSNF raised levels of serum estradiol (E2), anti-mullerian hormone (AMH), and inhibin B (INHB), reduced levels of serum gonadotropin-releasing hormone (GnRH) and follicle-stimulating hormone (FSH), and ameliorated ovarian pathological damage in rats experiencing menopausal syndrome. It was discovered that GSNF enhanced ovarian FSHR and ERα protein expression, stimulated follicular development by activating the PI3K/AKT pathway, and hindered ovarian follicular apoptosis while improving ovarian function through the regulation of apoptosis-related proteins Bcl-2, BAX, and Caspase-3 expression. Furthermore, GSNF augmented the expression of hippocampal FSHR protein and upregulated the expression of hippocampal PI3K and AKT proteins. Additionally, it reduced serum corticosterone (CORT) and adrenocorticotropic hormone (ACTH) levels, facilitated the release of 5-hydroxytryptamine (5-HT), dopamine (DA), and norepinephrine (NE), and boosted hippocampal tissue neuron count, thereby ameliorating depression-like symptoms during menopause. Moreover, GSNF supplementation improved glucose-lipid metabolism disorders and mitigated hepatic steatosis in model rats. Overall, our research revealed a new function for GSNF in mitigating the adverse impact of negative emotion and unhealthy dietary habits on menopausal symptoms. These findings indicate that GSNF may be a viable option for treating menopausal syndrome.