National survey on perioperative cognitive dysfunction.

BACKGROUND: Perioperative cognitive dysfunction (PCD) is a very prevalent clinical syndrome due to the progressive aging of the surgical population.The aim of our study is to evaluate the clinical practice of Spanish anesthesiologists surveyed regarding this entity. MATERIAL AND METHODS: Prospective online survey conducted by the Neurosciences Section and distributed by SEDAR. RESULTS: 544 responses were obtained, with a participation rate of 17%. 54.4% of respondents never make a preoperative assessment of cognitive impairment, only 7.5% always do it. 79.6% lack an intraoperative management protocol for the patient at risk of PCD. In the anesthetic planning, only 23.3% of the patients was kept in mind. Eighty-nine percent considered regional anesthesia with or without sedation preferable to general anesthesia for the prevention of PCD. 88.8% considered benzodiazepines to present a high risk of PCD. 71.7% considered that anesthetic depth monitoring could prevent postoperative cognitive deficit. Routine evaluation of postoperative delirium is low, only 14%. More than 80% recognize that PCD is underdiagnosed. CONCLUSIONS: Among Spanish anesthesiologists surveyed, PCD is still a little known and underappreciated entity. It is necessary to raise awareness of the need to detect risk factors for PCD, as well as postoperative assessment and diagnosis. Therefore, the development of guidelines and protocols and the implementation of continuing education programs in which anesthesiologists should be key members of multidisciplinary teams in charge of perioperative care are suggested.

Longitudinal Relationship Between Baseline Social Frailty and Cognitive Impairment in Older Adults: 14-Year Follow-Up Results From the Korean Longitudinal Study of Ageing.

OBJECTIVES: This study aimed to investigate the longitudinal relationship between social frailty and cognitive impairment among community-dwelling older adults. DESIGN: This retrospective cohort study is based on the first to eighth waves of the Korean Longitudinal Study of Ageing (2006-2020). SETTING AND PARTICIPANTS: The participants were 2106 community-dwelling older adults aged 65 years or older and without cognitive impairment in 2006. METHODS: Social frailty was assessed with 5 items including social support, social activity, social network, loneliness, and living alone (0 = social nonfrailty, 1 = social prefrailty, 2 or more = social frailty). Cognitive function was assessed using the Korean Mini-Mental State Examination, and scores below 24 indicated cognitive impairment. We used the generalized estimating equation to assess the longitudinal relationship between social frailty and cognitive impairment. RESULTS: Of the 2106 participants, 515 (24.4%) had social frailty, 669 (31.8%) had social prefrailty, and 922 (43.8%) were social nonfrailty based on the baseline assessments. Relative to the social nonfrailty group, the odds ratios of the social prefrailty and social frailty groups for cognitive impairment were 1.30 (95% CI 1.10-1.54) and 1.41 (95% CI 1.16-1.71), respectively, during the follow-up. Subgroup analysis showed that social inactivity and loneliness were significantly associated with cognitive impairment. CONCLUSIONS AND IMPLICATIONS: These findings highlight the need for health care providers to introduce and use available social resources for older adults with social frailty to increase the relationships between individual and social context. Social inactivity and loneliness were the major domains associated with cognitive impairment, and loneliness can be resolved by participating in social activities. Therefore, health care providers especially provide opportunities for social activities, such as group-based programs in the community, to reduce social frailty and cognitive impairment.

Serum Vascular Adhesion Protein-1 and Endothelial Dysfunction in Hepatic Cirrhosis: Searching for New Prognostic Markers.

Endothelial dysfunction plays a key role in the development of liver cirrhosis. Among the biomarkers of endothelial dysfunction, the soluble form of Vascular Adhesion Protein-1 (sVAP-1) is an unconventional and less known adhesion molecule endowed also with amine oxidase activity. The aim of this study was to explore and correlate the behavior of sVAP-1 with that of the soluble vascular cell adhesion molecule-1 (sVCAM-1) and intercellular adhesion molecule-1 (sICAM-1) and with the severity of liver cirrhosis. A cross-sectional study was carried out by enrolling 28 controls, 59 cirrhotic patients without hepatocellular carcinoma, and 56 patients with hepatocellular carcinoma (HCC), mainly caused by alcohol abuse. The levels of adhesion molecules and of the pro-inflammatory cytokines (IL-6 and TNF-αα) were determined by immunoassay and the enzymatic activity of sVAP-1 by a fluorometric assay. In non-diabetic patients without HCC, a specific behavior of sVAP-1 was highlighted. Differently from sVCAM-1, sICAM-1, and cytokines, the sVAP-1 level was significantly increased only in the early stage of disease, and then, it decreased in the last stage (866 ± 390 ng/mL vs. 545 ± 316 ng/mL, in Child-Pugh class A vs. C, respectively, p < 0.05). Bivariate analysis correlates sVAP-1 to sVCAM-1, in the absence of HCC (Spearman's rho = 0.403, p < 0.01). Multiple linear regression analysis revealed that sVCAM-1 appears to be a predictor of sVAP-1 (ß coefficient = 0.374, p = 0.021). In conclusion, in non-diabetic and non-HCC cirrhotic patients, sVAP-1 may be a potential prognostic biomarker that, together with sVCAM-1 and pro-inflammatory cytokines, may provide information on the progression of sinusoidal liver endothelium damage.

Assessment of cancer therapy-related cardiac dysfunction in breast cancer women using a new speckle tracking echocardiography index: The GAVS.

BACKGROUND: Recently, peak atrial longitudinal strain (PALS) has emerged as a possible predictor of Cancer therapy-related cardiac dysfunction (CTRCD) in cancer patients (CP), in addition to left ventricular global longitudinal strain (GLS). Thus, considering the link between left atrium and left ventricle, the aim of this study was to assess the global atrio-ventricular strain (GAVS) in CP, to detect early cardiotoxicity. METHODS: A prospective study was carried out enrolling 131 breast cancer women (mean age 51.4 ± 10.4 years) receiving anti-cancer treatment. Clinical and echocardiographic evaluation was performed at baseline (T0), 3 (T1), 6 (T2) and 12 months (T3) after starting treatment. CTRCD was defined according to the 2022 ESC Cardio-Oncology guidelines. RESULTS: Forty-four patients developed CTRCD (3 moderate and 41 mild CTRCD group A) and 87 patients did not (group B). In group A, significant changes in GLS, PALS, GAVS, LASi (left atrial stiffness index) and LVEF/GLS occurred earlier than LVEF, that reduced significantly only at T3 (p-value < .05). Significant changes in LASi, PALS and GAVS occurred even in group B but reduction in GAVS (-21% vs. -5%) and PALS (-24% vs. -12%) was significantly greater in group A compared to group B (p-value = .04). CONCLUSIONS: Our study confirms high sensitivity of speckle tracking echocardiography in detecting subclinical myocardial damage in CP and the usefulness of a multiparametric echocardiographic evaluation including PALS and GLS (GAVS) for having a global evaluation of the phenomenon cardiotoxicity.

Anterior obturator artery perforator (aOAP) flap: A last-resort treatment option for sexual dysfunction in lichen sclerosus et atrophicus.

INTRODUCTION: Lichen sclerosus et atrophicus is an inflammatory, scarring dermatosis of the female anogenital area and may lead to pain and sexual dysfunction. In select cases which are refractory to conservative therapy, surgery may provide significant symptom improvement. The objective of this study was to expand the range of surgical treatment options for these patients by presenting the operative outcomes of a specialised reconstructive method using the anterior obturator artery perforator (aOAP) flap. METHODS: A retrospective cohort study was conducted on sexual outcomes following the excision of affected vulvovestibular tissue by skinning vulvectomy and subsequent single-stage reconstruction using the aOAP flap. Additional procedures, such as the Omega-Domed (OD) flap, scar surgery and clitoral re-exposure, were performed when indicated. RESULTS: Between 2014 and 2022, a total of 61 patients were surgically treated and retrospectively included in this study. Vulvectomy and subsequent reconstruction with bilateral aOAP flaps were performed in 53 (87%) cases. There was a significant reduction in the prevalence of dyspareunia and inability to have sexual intercourse at the 1-year follow-up compared to baseline (p < 0.001). There were several minor, reversible complications that required secondary intervention. CONCLUSIONS: The outcomes of this study indicate a substantial improvement in sexual function, evidenced by a significant reduction in dyspareunia and an increased ability to engage in sexual intercourse. Altered tissue quality in patients with lichen sclerosus et atrophicus and long-term cortisone application may predispose this patient population to a higher risk of minor post-operative complications. CLINICAL TRIAL REGISTRATION NUMBER: DRKS00033261.

Long-term musculoskeletal function after Open Pelvic ring fractures in Children (OPEC); a multicentre, retrospective case series with follow-up measurement.

Background: The proportion of Open Pelvic fractures in the paediatric population is relatively high. While operative fixation is the primary approach for managing Open Pelvic fractures in adults, there is limited literature on treatment outcomes in Children, particularly regarding long-term musculoskeletal, neurological, and urogenital function. Methods: This multicentre case series included paediatric patients (<18 years old) with Open Pelvic ring fractures treated at one of two major trauma centres in the Netherlands between January 1, 2001 and December 31, 2021. Data collection involved clinical records and long-term assessments, including musculoskeletal function, growth disorders, urogenital function, sexual dysfunction, and sensory motor function. Results: A total of 11 patients were included, primarily females (73 %), with a median age at trauma of 12 years (P25-P75 7-14). Most patients had unstable Pelvic ring fractures resulting from high-energy trauma. Surgical interventions were common, with external fixation as the main initial surgical approach (n = 7, 70 %). Complications were observed in eight (73 %) patients. Musculoskeletal function revealed a range of issues in the lower extremity, daily activities, and mental and emotional domain. Long-term radiologic follow-up showed high rates of Pelvic malunion (n = 7, 64 %). Neurological function assessment showed motor and sensory function impairment in a subset of patients. Urogenital function was moderately affected, and sexual dysfunction was limited with most respondents reporting no issues. Conclusion: Paediatric Open Pelvic fractures are challenging injuries associated with significant short-term complications and long-term musculoskeletal and urogenital issues. Further research is needed to develop tailored treatment strategies and improve outcomes of these patients.

Cognitive Impairment and Its Associated Determinants Among the Elderly Population of Telangana, India: An Analytical Prevalence Study.

INTRODUCTION: Dementia is an insidious cognitive disorder featuring a decline in cognition that is not well explained by the physiology of aging. Dementia includes a group of disorders that are distinguished by a gradual loss of both cognition and the capability to execute day-to-day functions. MATERIALS AND METHODS: We conducted a cross-sectional study among 384 elderly participants in areas surrounding the All India Institute of Medical Sciences, Bibinagar, Telangana, India. Those with more than 65 years of age were included in the study, and those suffering from serious illnesses were excluded. The Montreal Cognitive Assessment (MOCA) scale, the University of California and Los Angeles (UCLA) Loneliness Scale, and the Patient Health Questionnaire (PHQ-9) were used to assess cognitive status, loneliness, and depression, respectively, among the study participants. Logistic regression was performed to identify factors associated with cognitive impairment (CI), depression, and loneliness. RESULTS: The average MOCA score of the study participants was 14.9 ± 6.9, with 28.6% of the participants exhibiting severe CI. Nearly half of the participants (49.2%) experienced moderate to high degrees of loneliness, and 39.3% experienced moderate to severe depression. Important factors found to be associated with severe CI were illiteracy (adjusted odds ratio (AOR): 2.85, 95% CI: 1.35-4.45), urban residence (AOR: 0.18, 95% CI: 0.04-0.81), living with a spouse (AOR: 0.23, 95% CI: 0.11-0.78), not consuming alcohol (AOR: 0.35, 95% CI: 0.14-0.87), and depression (AOR: 4.49, 95% CI: 1.37-14.67). CONCLUSION: CI is a serious public health problem in India. With the increasing proportion of the elderly population in the near future, CI levels will increase, especially in countries like India. Timely interventions such as early identification through community-based screening, the inclusion of a geriatric health component in primary health care, and proper counseling will help address this problem at a grassroots level.

Ultrasound assessment of diaphragmatic dysfunction in non-critically ill patients: relevant indicators and update.

Diaphragm dysfunction (DD) can be classified as mild, resulting in diaphragmatic weakness, or severe, resulting in diaphragmatic paralysis. Various factors such as prolonged mechanical ventilation, surgical trauma, and inflammation can cause diaphragmatic injury, leading to negative outcomes for patients, including extended bed rest and increased risk of pulmonary complications. Therefore, it is crucial to protect and monitor diaphragmatic function. Impaired diaphragmatic function directly impacts ventilation, as the diaphragm is the primary muscle involved in inhalation. Even unilateral DD can cause ventilation abnormalities, which in turn lead to impaired gas exchange, this makes weaning from mechanical ventilation challenging and contributes to a higher incidence of ventilator-induced diaphragm dysfunction and prolonged ICU stays. However, there is insufficient research on DD in non-ICU patients, and DD can occur in all phases of the perioperative period. Furthermore, the current literature lacks standardized ultrasound indicators and diagnostic criteria for assessing diaphragmatic dysfunction. As a result, the full potential of diaphragmatic ultrasound parameters in quickly and accurately assessing diaphragmatic function and guiding diagnostic and therapeutic decisions has not been realized.

Systemic immune-inflammation index mediates the association between metabolic dysfunction-associated fatty liver disease and sub-clinical carotid atherosclerosis: a mediation analysis.

Background: Limited research has been conducted to quantitatively assess the impact of systemic inflammation in metabolic dysfunction-associated fatty liver disease (MAFLD) and sub-clinical carotid atherosclerosis (SCAS). The systemic immune-inflammation index (SII), which integrates inflammatory cells, has emerged as a reliable measure of local immune response and systemic inflammation Therefore, this study aims to assess the mediating role of SII in the association between MAFLD and SCAS in type 2 diabetes mellitus (T2DM). Method: This study prospectively recruited 830 participants with T2DM from two centers. Unenhanced abdominal CT scans were conducted to evaluate MAFLD, while B-mode carotid ultrasonography was performed to assess SCAS. Weighted binomial logistic regression analysis and restricted cubic splines (RCS) analyses were employed to analyze the association between the SII and the risk of MAFLD and SCAS. Mediation analysis was further carried out to explore the potential mediating effect of the SII on the association between MAFLD and SCAS. Results: The prevalence of both MAFLD and SCAS significantly increased as the SII quartiles increased (P<0.05). MAFLD emerged as an independent factor for SCAS risk across three adjusted models, exhibiting odds ratios of 2.15 (95%CI: 1.31-3.53, P < 0.001). Additionally, increased SII quartiles and Ln (SII) displayed positive associations with the risk of MAFLD and SCAS (P < 0.05). Furthermore, a significant dose-response relationship was observed (P for trend <0.001). The RCS analyses revealed a linear correlation of Ln (SII) with SCAS and MAFLD risk (P for nonlinearity<0.05). Importantly, SII and ln (SII) acted as the mediators in the association between MAFLD and SCAS following adjustments for shared risk factors, demonstrating a proportion-mediated effect of 7.8% and 10.9%. Conclusion: SII was independently correlated with MAFLD and SCAS risk, while also acting as a mediator in the relationship between MAFLD and SCAS.

BODY AWARENESS, STRESS AND SYMPTOMS IN AUTONOMIC DYSFUNCTION IN PATIENTS WITH CHRONIC PAIN: AN EXPLORATIVE STUDY.

Objective: To assess pain outcomes, stress levels and body awareness among patients with chronic pain and explore potential associations between these variables. Design: An explorative study. Methods: Patients with chronic pain in primary and specialist care were assessed regarding pain intensity using the Numerical Rating Scale (NRS; 0-10 point scale) and stress levels using the Stress and Crisis Inventory (SCI-93; 0-140). To assess body awareness, multidimensional assessment of interoceptive awareness (MAIA; 0-5), a widely used self-report measure of interoceptive bodily awareness was used. Results: Participants (n = 42) reported an average NRS of 4.4, elevated stress levels and low body awareness. Stress levels were moderately correlated with pain intensity (r = 0.53; p < 0.001; 95% confidence interval [CI] 0.25-0.72) and number of pain sites (r = 0.58; p < 0.001; 95% CI 0.32-0.76). The regression analysis showed that pain outcomes predicted stress level scores and explained almost 50% of variance (R 2 = 0.47, p < 0.001). Moreover, shorter pain duration predicted a higher body awareness (p = 0.04). Conclusion: In patients with chronic pain, high pain intensity and multiple painful sites seem to be associated with impaired stress regulation. The patients had low body awareness, which was negatively influenced by pain duration.

A Novel Ultrasound-Guided Bilateral Vagal Nerve Hydrodissection With 5% Dextrose Without Local Anesthetic for Recalcitrant Chronic Multisite Pain and Autonomic Dysfunction.

Chronic pain is a complex condition that often poses diagnostic and management challenges due to its multifactorial etiology. This case report describes a 49-year-old pastor who presented with a three-year history of chronic pain affecting multiple sites, including the neck, bilateral shoulders, thoracic region, lower back, and bilateral knees. Additionally, he experienced shortness of breath on mild exertion, which adversely affected his ability to converse and speak publicly. The patient had a rapid resting heart rate of 100-120 beats per minute, occasional palpitations, and a 24-hour electrocardiogram that confirmed 15% premature ventricular complexes with bigeminy and trigeminy. He complained of limited appetite with early satiety, intermittent nausea, and regurgitation. Despite consultations with multiple specialists, no underlying causes were identified in the cardiac, respiratory, gastrointestinal, or psychological domains. Ultrasound-guided bilateral vagus nerve hydrodissection using 5% dextrose without local anesthetics was administered three times at monthly intervals, resulting in remarkable pain relief within three months and the effects persisted at the nine-month follow-up. Tachycardia was no longer perceived, resting heart rate slowed to 70-80 beats per minute, shortness of breath improved, and public speaking ability was restored. The patient's early satiety, nausea, and reflux complaints were resolved. This case report highlights the potential effectiveness of this novel intervention for chronic pain. Further research is warranted to validate these findings and explore the mechanism of action.

Virtual Education in Urogynecology: Enhancing Understanding and Management of Pelvic Fistulas.

Introduction: Pelvic fistulas affect a significant number of patients globally, with a relatively low prevalence in the United States. Virtual education offers an effective, scalable solution to bridge this educational gap and lead to a deeper understanding of more common conditions, such as urinary and fecal incontinence. Methods: We developed two virtual cases on rectovaginal and vesicovaginal/ureterovaginal fistulas to enhance medical students' exposure, knowledge, and confidence regarding assessment of pelvic fistulas. The cases could be completed in approximately 30 minutes, asynchronously, and at students' own pace. The cases were integrated into an OB/GYN clerkship. We conducted a survey among students receiving the cases to gather feedback on usability, acceptability, and educational value, which guided subsequent improvements. Results: Forty medical students, ranging from first to third year, participated in the urogynecology elective; 21 (53%) completed the survey. Ninety-one percent agreed or strongly agreed they were satisfied with the cases. All respondents found the format easy to use and appropriate for their level of learning. Most reported the cases improved their confidence in nonsurgical and surgical management options for pelvic fistulas. Discussion: Offering virtual and interactive patient cases on e-learning platforms represents an innovative approach to increasing clinical exposure to urogynecologic disorders. By providing medical students with the opportunity to interact with pelvic fistulas virtually, these cases can help bridge a gap in clinical education. Future exploration is valuable for examining knowledge deficiencies and developing cost-effective, self-paced, easily accessible educational resources to advance medical training and optimize patient care.

Epidemiology of Hepatocellular Carcinoma in India - An Updated Review for 2024.

Hepatocellular carcinoma (HCC) is the most common form of primary liver cancer and is a significant cause of morbidity and mortality, especially in patients with chronic liver disease. As a reflection of geographical variations in India, there is significant variation in the prevalence and etiological factors of HCC. In contrast to previous studies reporting viral hepatitis as the most common etiology, recent data indicates a changing etiological pattern of cirrhosis and HCC, with alcohol and metabolic dysfunction-associated steatotic liver disease (MASLD) emerging as the foremost cause. Thus, there was a need for an updated review of the current literature and databases for the changing epidemiology and etiological spectrum of HCC in India. The review included data primarily from the National Cancer Registry Program and the Global Burden of Diseases, Injuries, and Risk Factors Study, with the inclusion of other studies from India. The highlights of the present review are summarized in the following lines. Although the current incidence (2.15 per 100,000), prevalence (2.27 per 100,000), and mortality (2.21 per 100,000) rate of HCC in India remain lower compared to the global data, the annual rates of change in these parameters are higher in India. Among Indians, the present incidence, prevalence, and mortality related to HCC are higher in males, while the annual rate of change is higher in females. The Northeastern states have higher incidence, prevalence, and mortality related to HCC, but the Western states of Gujarat, Maharashtra, Goa, and Kerala are emerging as newer hotspots with higher annual rates of change in incidence, prevalence, and mortality. The incidence of HCC related to hepatitis B is on a downtrend, while those related to alcohol and MASLD are rising. Public health initiatives, awareness campaigns, and focused treatments are all necessary to combat these changes, particularly in areas with high incidence rates.

A Web-Based Survey of Patients Dispensed Viagra Connect® Behind the Counter in UK: An Evaluation of Effectiveness of Additional Risk Minimization Measures.

Purpose: A national additional risk minimization measures (aRMMs) program was implemented to train pharmacists for safe supply of non-prescription Viagra Connect® (VC) to erectile dysfunction (ED) patients in United Kingdom (UK). A survey aimed to evaluate the effectiveness of aRMMs. Methods: A cross-sectional, web-based survey enrolled ED patients who purchased at least 1 supply of VC in UK, using a structured self-administered questionnaire. Patients were assessed for the suitability of VC and received appropriate advice from pharmacists. Descriptive statistics were used. Results: The final sample had 297 patients, who reported that pharmacists inquired about blood pressure and heart comorbidities (91.9%), relevant illnesses (87.9%), medications (86.5%), ED diagnosis (82.2%), and were advised to consult their doctor regarding ED (51.2%). Furthermore, 85.5% of patients were advised on how to take VC correctly, 82.2% on possible side effects for which they might have to discontinue taking VC and consult their doctor, 80.1% on being informed that ED could be caused by underlying conditions. About 65.0% reported that they had visited (19.2%) or planned to visit (45.8%) their doctor. A majority (68.7%) also indicated that they had received advice on lifestyle modifications to manage their ED-related health risks. Conclusion: This survey provided a reasonable confirmation of the effectiveness of the VC aRMMs program and assurance that ED patients, when requesting and purchasing VC in UK pharmacies, are assessed appropriately for suitability of VC and receive the appropriate advice from pharmacists.

A national additional risk minimization measures (aRMMs) program was implemented to train pharmacists for safe supply of non-prescription VC to erectile dysfunction (ED) patients in United Kingdom (UK). A cross-sectional, web-based survey enrolled ED patients who purchased at least 1 supply of VC in UK, using a structured self-administered questionnaire. Patients were assessed for the suitability of VC and received appropriate advice from pharmacists. The final sample had 297 patients, who reported that pharmacists inquired about blood pressure and heart comorbidities, relevant illnesses, medications, ED diagnosis, and were advised to consult their doctor regarding ED. Additionally, most of the patients had consulted or planned to consult their doctors, on how to take VC correctly, on possible side effects for which they might have to discontinue taking VC and consult their doctor, on being informed that ED could be caused by underlying conditions, and on lifestyle modifications. A majority also indicated that they had received advice on lifestyle modifications to manage their ED-related health risks. This survey provided a reasonable confirmation of the effectiveness of the VC aRMMs program and assurance that ED patients, when requesting and purchasing VC in UK pharmacies, are assessed appropriately for suitability of VC and receive the appropriate advice from pharmacists.

Mechanism research on microRNA-669f-5p/deoxycytidylate deaminase axis mediating sevoflurane-induced cognitive dysfunction in aged mice.

OBJECTIVE: To investigate the role of the microRNA (miRNA)-669f-5p/deoxycytidylate deaminase (Dctd) axis in sevoflurane inducing cognitive dysfunction in aged mice. METHODS: Sixty-six C57BL/6J mice were used in the experiment model and were randomly divided into the sevoflurane group and the control group. The mice in the sevoflurane group were anesthetised with 3.4% sevoflurane, whereas those in the control group were air-treated for the same period. The study was then performed using bioinformatics sequencing, as well as in vitro and in vivo validation. RESULTS: The mice in the sevoflurane group showed significant cognitive impairments in terms of a decrease in both spatial learning and memory abilities. Experimental doses of miR-669f-5p agonist exhibited no obvious effect on cognitive function following sevoflurane inhalation, but inhibiting the expression of miR-669f-5p could alleviate the impairments. Based on the results of the bioinformatics sequencing, miR-669f-5p/Dctd and the toll-like receptor (TLR) signalling pathway could be the key miRNA, gene and pathway leading to postoperative cognitive dysfunction following sevoflurane inhalation. The aged mice showed significantly increased expression of miR-669f-5p in the hippocampus following sevoflurane inhalation, and upregulating/inhibiting its expression could increase/decrease TLR expression in the hippocampus. Furthermore, miR-669f-5p could reduce the expression of the Dctd gene by binding to its 3'untranslated region. CONCLUSION: The miR-669f-5p/Dctd axis plays an important role in sevoflurane inducing cognitive dysfunction in aged mice, providing a new direction for further development of therapeutic strategies concerning the prevention and treatment of cognitive dysfunction associated with sevoflurane anaesthesia.

Drop to Gate Nasal Drops Attenuates Sepsis-Induced Cognitive Dysfunction.

Nasal administration can bypass the blood-brain barrier and directly deliver drugs to the brain, providing a non-invasive route for central nervous system (CNS) diseases. Inspired by the appearance that a gate can block the outside world and the characteristics of the sol-gel transition can form a "gate" in the nasal cavity, a Drop to Gate nasal drop (DGND) is designed to set a gate in nose, which achieves protecting role from the influence of nasal environment. The DGND demonstrates the efficiency and application prospect of delivering drugs to the brain through the N-to-B. The effective concentration of single administration is increased through the hydrophobic interaction between C8-GelMA and SRT1720 (SA), and then cross-linked under UV to form nanogel, which can respond to MMP in the inflammatory microenvironment of sepsis-induced cognitive dysfunction. Finally, the SA/nanogel is compounded into the thermogel, which can respond to the nasal cavity temperature to form DGND in situ, increasing the residence time and delivery efficiency of drugs in the nasal cavity. In vitro, the DGND alleviates lipopolysaccharides (LPS)-induced BV2 inflammation. In vivo, DGND effectively targets the nasal mucosa and deliver drugs to the brain, which activate Sirt1 to alleviate inflammation mediated by microglia and improve cognitive dysfunction in sepsis mice.

Combining blood pressure variability and heart rate variability to analyze the autonomic nervous function of rotenone induced Parkinson's rat model.

BACKGROUND: Parkinson's patients have significant autonomic dysfunction, early detect the disorder is a major challenge. To assess the autonomic function in the rat model of rotenone induced Parkinson's disease (PD), Blood pressure and ECG signal acquisition are very important. NEW METHOD: We used telemetry to record the electrocardiogram and blood pressure signals from awake rats, with linear and nonlinear analysis techniques calculate the heart rate variability (HRV) and blood pressure variability (BPV). we applied nonlinear analysis methods like sample entropy and detrended fluctuation analysis to analyze blood pressure signals. Particularly, this is the first attempt to apply nonlinear analysis to the blood pressure evaluate in rotenone induced PD model rat. RESULTS: HRV in the time and frequency domains indicated sympathetic-parasympathetic imbalance in PD model rats. Linear BPV analysis didn't reflect changes in vascular function and blood pressure regulation in PD model rats. Nonlinear analysis revealed differences in BPV, with lower sample entropy results and increased detrended fluctuation analysis results in the PD group rats. COMPARISON WITH EXISTING METHODS AND CONCLUSIONS: our experiments demonstrate the ability to evaluate autonomic dysfunction in models of Parkinson's disease by combining the analysis of BPV with HRV, consistent with autonomic impairment in PD patients. Nonlinear analysis by blood pressure signal may help in early detection of the PD. It indicates that the fluctuation of blood pressure in the rats in the rotenone model group tends to be regular and predictable, contributes to understand the PD pathophysiological mechanisms and to find strategies for early diagnosis.

Multidisciplinary rehabilitation following recreational nitrous oxide (N2O) misuse: evaluating service provision and rehabilitation outcomes in a cohort with serious disability.

Purpose: Recreational nitrous oxide (N2O) misuse is increasing globally. Chronic misuse can cause neurological impairments that require rehabilitation, though literature characterising rehabilitation is limited. This study aimed to evaluate rehabilitation service provision for impairments resulting from N2O misuse. Methods: A retrospective audit of hospitalised patients referred for rehabilitation for N2O toxicity was conducted between 2015 and 2022 at a single metropolitan hospital. Data were collected via medical record audit and analysed via descriptive and non-parametric statistics. Results: 16 eligible cases were identified, aged 18-43 years (50% female/male), with increasing case frequency. 12 cases received inpatient rehabilitation episodes for multifactorial sensorimotor, cognitive and psychosocial impairments. Cases articulated diverse rehabilitation goals and received intervention from a median of 6 clinical disciplines. All cases required assistance to mobilise or perform self-care activities on admission. Functional Independence Measure (FIM) scores significantly improved with rehabilitation (median FIM 84[75-93] to 117[112-123], p < .001). Despite gains in independence, all cases required referral for ongoing rehabilitation post-discharge. Conclusions: Demand for inpatient rehabilitation for disabling N2O toxicity appears to be increasing. In this series, cases were young, exhibited serious impairments, and had multidisciplinary rehabilitation needs. Inpatient rehabilitation led to significant functional improvements, though ongoing disability was evident post-discharge.

There appears to be rising demand for multidisciplinary rehabilitation to manage neurological disabilities from recreational Nitrous Oxide (N₂O) misuse.Heavy N₂O misuse can cause serious impairments and activity limitations across sensorimotor, cognitive and psychosocial domains.Intensive, multidisciplinary rehabilitation can improve functional independence for people with disabling N₂O toxicity; specialist rehabilitation services should be involved in optimising care of this population.Ongoing disability and the need for longer-term rehabilitation and support following hospital discharge were evident in severe cases of N₂O toxicity.