Scientists Develop Bioengineered Platform to Grow Teeth in the Lab

UK: In a breakthrough that could reshape future dental care, researchers from King’s College London and Imperial College London have developed a novel method to grow tooth-like structures in the lab using specially designed hydrogels. This innovation brings science one step closer to enabling people to regrow their teeth rather than relying on traditional treatments like fillings or implants.

The research team used bioorthogonally cross-linked hydrogels—gelatin-based substances modified with chemical groups called tetrazine and norbornene—to create a 3D environment that mimics how teeth naturally form in the body. These hydrogels were carefully engineered to have varying stiffness and elasticity, helping to recreate the complex biological conditions needed for tooth development.

The findings were published online in ACS Macro Letters.

By embedding dental epithelial and mesenchymal cells into these hydrogels, the scientists were able to stimulate cell-to-cell communication, an essential process for tooth formation. This interaction allowed the cells to gradually develop into tooth-like structures, forming what are known as tooth organoids. This is the first time such hydrogels have been used in this context, marking a significant step in dental tissue engineering.

Dr. Xuechen Zhang from the Faculty of Dentistry, Oral & Craniofacial Sciences at King’s College London explained in a press release, “Unlike traditional fillings and implants, which are artificial and can degrade or cause issues over time, lab-grown teeth have the potential to integrate naturally and even repair themselves.”

She added that one of the key challenges previously was the failure of earlier materials to properly control how and when signals were sent between cells. “With this new hydrogel, we’re able to mimic the body’s own environment more closely by allowing signals to be released gradually. That’s what kickstarts the natural tooth development process.”

Although this research is still at an early stage, it opens the door to two possible clinical approaches in the future: either transplanting early-stage tooth cells directly into the jaw to let them grow inside the mouth or growing an entire tooth in the lab and implanting it later.

Dr. Ana Angelova Volponi, the study’s corresponding author, highlighted the broader impact of this work: “This is a promising step in regenerative medicine. Our goal is to move beyond artificial solutions and instead regenerate real, functioning teeth that behave just like the ones we’re born with.”

As this area of research continues to grow, it could offer a sustainable, long-term solution to tooth loss and reshape the future of oral healthcare.

In summary, the researchers embedded clusters of dental epithelial and mesenchymal cells into various hydrogel formulations and successfully identified a specific combination that supported healthy cell growth and the development of early tooth structures, paving the way for a customizable system to engineer and study tooth organoids.

Reference:

Zhang X, Contessi Negrini N, Correia R, Sharpe PT, Celiz AD, Angelova Volponi A. Generating Tooth Organoids Using Defined Bioorthogonally Cross-Linked Hydrogels. ACS Macro Lett. 2024 Dec 17;13(12):1620-1626. doi: 10.1021/acsmacrolett.4c00520. Epub 2024 Nov 12. PMID: 39532305; PMCID: PMC11656705.

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Esketamine promising in Reducing Postpartum Depression after Cesarean Deliveries, suggests study

Recent randomized clinical trial was conducted to evaluate the efficacy of intraoperative esketamine in reducing postpartum depression (PPD) among women undergoing cesarean delivery. The trial was carried out at The First Affiliated Hospital of Chongqing Medical University in China, from March 2023 to February 2024. The participants included pregnant patients admitted for cesarean delivery, with exclusions for those having intellectual dysfunction or contraindications to esketamine. A total of 308 women were enrolled and randomly assigned to either the esketamine group (154 participants) or the control group receiving saline (154 participants) in a 1:1 ratio, following the intention-to-treat principle.

Intervention Details

The intervention for the esketamine group involved a 20-minute infusion of 0.25 mg/kg esketamine in saline, whereas the control group received saline only. The primary outcome of interest was the incidence of PPD at 6 weeks postpartum, which was measured using the Edinburgh Postnatal Depression Scale (EPDS). A secondary outcome included the incidence of PPD at 1 week postpartum and assessment of pain levels using a numerical rating scale (NRS) postoperatively.

Results Summary

Results indicated a significantly lower incidence of PPD at 6 weeks postpartum in the esketamine group (10.4%) compared to the control group (19.5%), yielding a relative risk (RR) of 0.53 with a 95% confidence interval of 0.30 to 0.93 (P = .02). Conversely, no significant difference was observed at 1 week postpartum, where incidences were 15.6% for the esketamine group and 24.0% for the control group (RR=0.64; P = .06). At 6 weeks postpartum, EPDS scores also reflected this trend, with lower median scores in the esketamine group (5 vs 6; P = .02), indicating less depressive symptom severity. The findings suggested that esketamine may effectively reduce the incidence of PPD among women undergoing cesarean delivery when assessed at a 6-week follow-up, but not at 1 week postpartum. Stratified analyses did not reveal significant advantages of esketamine in reducing PPD across various subgroups, nor did it impact pain scores after surgery. However, there was a noted reduction in the frequency of patient-controlled intravenous analgesia (PCIA) bolus administration among the esketamine group, which may indicate potential benefits for managing postoperative pain.

Adverse Events and Monitoring

Despite the promising results, the trial noted some adverse events associated with esketamine use, including dizziness, trance-like states, and dream-like sensations. While these effects were transient, they highlighted the need for careful monitoring of patients receiving esketamine. The trial also pointed out that a better understanding of the optimal dosing and administration routes for esketamine could help mitigate adverse reactions and enhance its effectiveness.

Conclusion and Future Research

In conclusion, this trial provided evidence for the potential use of esketamine as a preventive measure against PPD in women who have undergone cesarean delivery, though further research is warranted to confirm these findings and explore the broader clinical implications. Large-scale, multicenter studies are necessary to validate these results and enhance understanding of esketamine’s role in postpartum mental health care.

Key Points

– A randomized clinical trial involving 308 women undergoing cesarean delivery was conducted to assess the efficacy of intraoperative esketamine on postpartum depression (PPD), with participants divided equally into esketamine and control groups.

– The intervention for the esketamine group included a 20-minute infusion of 0.25 mg/kg esketamine in saline, while the control group received only saline. The primary outcome measured was the incidence of PPD at 6 weeks postpartum, using the Edinburgh Postnatal Depression Scale (EPDS).

– At 6 weeks postpartum, the esketamine group showed a significantly lower incidence of PPD (10.4%) compared to the control group (19.5%), with a relative risk of 0.53 (95% CI: 0.30 to 0.93, P = .02). No significant difference was recorded at 1 week postpartum, with incidences of 15.6% for esketamine and 24.0% for control (RR=0.64; P = .06).

– EPDS scores reflected improved outcomes at 6 weeks, with the esketamine group reporting lower median scores (5 vs 6, P = .02), indicating reduced depressive symptom severity. Stratified analyses showed no significant differences in PPD reduction across demographic subgroups. – Participants in the esketamine group experienced fewer demands for patient-controlled intravenous analgesia (PCIA) boluses post-surgery, suggesting potential benefits in postoperative pain management, although pain scores did not significantly differ between groups.

– Adverse effects such as dizziness and dream-like sensations were recorded with esketamine use, emphasizing the importance of monitoring. The need for further research, including large-scale multicenter studies, was identified to validate the findings and explore optimal dosing and administration for improved safety and efficacy in managing postpartum mental health.

Reference –

Li Ren et al. (2025). Intraoperative Esketamine And Postpartum Depression Among Women With Cesarean Delivery. *JAMA Network Open*, 8. https://doi.org/10.1001/jamanetworkopen.2024.59331.

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Hydronidone effective treatment option of liver fibrosis associated with chronic hepatitis B, finds study

Liver fibrosis is a key process in the progression of chronic liver diseases. However, there are currently no drugs specifically designed to treat liver fibrosis. Our Phase 2 trial of hydronidone for the treatment of chronic hepatitis B (CHB)-associated liver fibrosis showed that adding hydronidone to entecavir resulted in significant reversal of liver fibrosis. To further evaluate the efficacy of a 270 mg/day dose of hydronidone for treating liver fibrosis associated with CHB, we conducted this Phase 3 trial.

This is a 52-week, randomized (1:1), double-blind, placebo-controlled, multicenter, entecavir-based Phase 3 clinical study conducted at 44 study centers across China. Adult patients aged 18 to 65 years with significant liver fibrosis (defined as an Ishak score ≥ 3 on liver biopsy) associated with CHB were included.

The primary endpoint of the trial is to demonstrate the efficacy of fibrosis reversal, defined as a decrease in the Ishak stage score of liver fibrosis by ≥1 after 52 weeks of treatment, compared to baseline.

This trial aimed to identify the antifibrotic effect and safety of hydronidone for CHB patients with significant liver fibrosis. It is anticipated that the findings of this study will further support the antifibrotic indication for this novel drug.

Reference:

Cai X, Qu Y, Xie W, Wang Y, Zhao M, Zhang L, et al. Hydronidone for the Treatment of Liver Fibrosis Associated with Chronic Hepatitis B: Protocol for a Phase 3 Randomized Trial. J Clin Transl Hepatol. Published online: Mar 10, 2025. doi: 10.14218/JCTH.2024.00472.

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Urine test could halve post-op scans for kidney cancer, reveals research

A simple urine test could accurately show the recurrence of kidney cancer at an early stage, potentially sparing patients invasive scans and enabling faster access to treatment, new research has shown.

The findings are presented today [Monday 24 March 2025] at the European Association of Urology (EAU) Congress in Madrid and have been accepted for publication in European Urology Oncology.

The test analyses the distinctive profiles of certain types of sugar molecules, called glycosaminoglycans which are found in urine. These profiles are known as the GAGome.

The international AURORAX-0087A (AUR87A) study is assessing whether a GAGome test can accurately detect the return of clear cell renal cell carcinoma (ccRCC) following surgery. This is the most common form of kidney cancer and accounts for up to 90% of cases. There are around 400,000 patients diagnosed with ccRCC worldwide each year.

Around one-fifth of ccRCC patients who have surgery to remove their cancer will see it return within five years – the majority within the first two years. Currently, the only way to monitor patients is through a scan – usually a CT scan – every 6 to 12 months, with the frequency depending on their level of risk.

The study’s initial cohort involved 134 patients treated at 23 hospitals across the UK, EU, USA and Canada. The patients were all diagnosed with ccRCC which had not spread beyond the kidney, and which was treated with surgery. Most had their kidney completely removed. All patients continued to have CT scans as standard monitoring after surgery, alongside a urine test every 3 months. Each urine sample was analysed using mass spectrometry to produce a score out of 100, called the GAGome score.

After up to 18 months of follow up, 15% of patients had seen their cancer return. The GAGome test was extremely sensitive in picking up recurrence, correctly identifying 90% of patients whose cancer had returned, while correctly ruling out just over half of those who remained cancer-free. These results were based on a GAGome score threshold optimised at 12/100. A score above 12 was counted as positive, and 12 or below as negative.

A positive result in the study yielded a 26% chance the patient actually had a recurrence. More importantly, a negative GAGome score resulted in a highly reliable 97% chance that the patient did not have a recurrence. The higher the GAGome score, the more likely the positive result correctly identified recurrence.

This level of accuracy is similar to CT scans and offers advantages to using scans alone, according to lead researcher on the study, Saeed Dabestani, Associate Professor at Lund University and Consultant Urologist at Kristianstad Central Hospital, Sweden.

“CT scans often pick up small lesions that aren’t large enough to biopsy, and we currently don’t know whether they are a sign of the cancer returning or not,” he explained. “Our only option is to do more frequent scans to monitor more closely, which is unpleasant for patients and often brings little benefit.

“If you have a urine test that can accurately show whether the cancer has actually returned then you can better assess risk levels and reduce the frequency of the scans required. Based on the results we have so far, it’s likely that we could safely halve the number of scans that patients have to undergo.”

Dr Carmen Mir Maresma, Consultant Uro-Oncologist from University Hospitals La Ribera in Valencia, Spain, and member of the EAU Scientific Congress Office said: “Developing biomarkers for kidney cancer is a major challenge and this study provides a stepping stone towards that goal. The results are really interesting, in that the test showed a high negative predictive value. If the test comes back negative, you can be more or less sure there is no cancer recurrence, but if it’s positive, then we need to look further. The test is also based on a suite of biomarkers, rather than just one molecule, which provides a more robust basis for making decisions on treatment.

“We don’t know yet whether finding recurrence sooner will save patients’ lives – more research is needed to determine that. There are also changes in post-operative treatment underway, with some countries licensing the immunotherapy pembrolizumab for kidney cancer. More research will also be needed to understand how this biomarker interacts with that therapy.”

The international team involved in the AUR87A study is nearing final recruitment of the second cohort of patients, the results from which will be used to validate the findings from the first cohort. These results are expected towards the end of this year.

The GAGome test used in the AUR87A study is under development by Swedish diagnostics company, Elypta, for whom Dabestani also acts as a medical adviser. The test has not yet been approved for clinical use in diagnostic procedures and further research will be required to confirm its effectiveness in clinical practice.

Reference:

Urine test could halve post-op scans for kidney cancer, European Association of Urology, Meeting: EAU25 European Association of Urology Congress.

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Side-to-side and end to end Anastomoses comparable in NOSES Surgery for Left Colon Cancer: Study

Researchers have found in a new study that in NOSES (Natural Orifice Specimen Extraction Surgery) for left colon cancer, both side-to-side (Overlap) and end-to-end anastomosis techniques demonstrated similar outcomes in terms of intraoperative and postoperative conditions.

A study was done to analyze and compare the application and efficacy of side-to-side anastomosis and end-to-end anastomosis in natural orifice specimen extraction surgery (NOSES) NOSES operation for left colon cancer. A retrospective analysis of 69 patients in our hospital from February 2018 to February 2022 who underwent NOSES for left colon tumors. The observation group was performed with side-to-side anastomosis (Overlap). For digestive tract reconstruction, the control group was anastomosed by end-to-end anastomosis; the intraoperative and postoperative conditions and complications were compared between the two groups. Results: There was no significant difference in operation time and intraoperative blood loss between the two groups (P > 0.05). However, the intraoperative anastomosis time in the observation group was significantly shorter than that in the control group (P < 0.001). Additionally, there was no significant difference in the time of first exhaustion, defecation time, degree of patency of defecation, frequency of defecation, postoperative hospital stays and postoperative pain between the two groups (P > 0.05). Furthermore, the overall incidence of postoperative complications did not show a significant difference (P > 0.05). In the NOSES surgery of left colon cancer, both side-to-side anastomosis (Overlap) and end-to-end anastomosis yielded comparable intraoperative and postoperative conditions and complications, but the side-to-side anastomosis (Overlap) method was simpler operation-wise and had a shorter intraoperative anastomosis time. As such, this method is the preferred anastomosis method when NOSES for colorectal cancer is carried out in primary hospitals.

Reference:

Huang, J., Wu, J., Fang, S. et al. Comparison of side-to-side anastomosis vs. end-to-end anastomosis in NOSES operation for left colon cancer: a retrospective study. BMC Surg 25, 142 (2025). https://doi.org/10.1186/s12893-025-02837-5

Keywords:

Side-to-side, end, Anastomoses, comparable, NOSES, Surgery, Left, Colon Cancer, Study, Huang, J., Wu, J., Fang, S, NOSES, Colon cancer, Laparoscopic surgery, Side-to-side anastomosis, End-to-end anastomosis

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Exercise and healthy eating behaviour together provide best protection against cardiovascular diseases: Study

Researchers at the University of Jyväskylä’s Faculty of Sport and Health Sciences have found that women who exhibit disturbed eating behaviours and engage in low physical activity tend to have more central body fat and a higher risk of metabolic low-grade inflammation. This condition increases the risk of cardiovascular diseases, which become more prevalent after menopause. However, the combined effect of exercise and healthy eating behaviour offers the most effective protection against inflammation and may also reduce it after menopause.

Body fat distribution changes as menopause progresses and estrogen levels decrease, causing the adipose tissue concentrated in the hips and thighs to gradually shift to the midsection as harmful visceral fat. This predisposes women to low-grade inflammation and cardiovascular diseases, which increase significantly after menopause.

A study by the University of Jyväskylä investigated the connection between health behaviours and low-grade inflammation. Health behaviours in this study include sleeping, eating and physical activity and related disorders. For example, disordered eating behaviour refers to a situation in which a person may restrict their eating to control their weight or body shape. They may also have a limited understanding of ​​what they are allowed to eat or what their body should look like.

“In line with previous studies, a higher amount of visceral fat was, as expected, associated with low-grade inflammation,” says Hannamari Lankila, a doctoral researcher at the Faculty of Sport and Health Sciences. “Visceral fat accumulated in the midsection secretes cytokines that increase inflammation, and this can increase the risk of metabolic diseases.”

The results show that those individuals who exhibit more disordered eating behaviour, as well as those who were physically less active, had more visceral fat, and thus the risk of low-grade inflammation was also higher.

When eating and physical activity behaviours were examined together, higher physical activity was associated with lower visceral fat, especially in those women who did not display disordered eating behaviour.

“The connection was weaker, meaning that the protective effect of even a high amount of exercise was less if the individual had eating-related difficulties,” Lankila continues. “Surprisingly, sleep was not a significant factor in this equation.”

Previous research has shown that both exercise and various diets and foods are associated with low-grade inflammation to some extent, but the combined effects of health behaviours during menopause have not previously been studied. The menopause phase is significant, however, as women live more than a third of their lives after menopause on average. During this period, the risk of metabolic and cardiovascular diseases increases significantly.

The study highlighted the link between visceral fat and inflammation, especially in women with low physical activity. Both physical activity and flexible eating behaviour can help reduce visceral fat, but the effect is likely to be more effective when the two are combined.

“It’s good to remember that even after menopause, it is possible to reduce the accumulation of harmful visceral fat and thus prevent metabolic and cardiovascular diseases that may result from it,” Lankila concludes.

The study also assessed sleep duration and perceived sleep quality as well as physical activity with the help of self-report questionnaires. Eating behaviour was assessed with the Eating Disorder Examination Questionnaire (EDE-Q), which consisted of 28 questions. The questionnaire can be used to assess whether a person restricts their eating and whether they have specific concerns about their eating, weight or body shape. In addition, the participants’ age, income level and use of menopausal hormone therapy were considered.

Reference:

Lankila, H., Kekäläinen, T., Hietavala, EM. et al. A mediating role of visceral adipose tissue on the association of health behaviours and metabolic inflammation in menopause: a population-based cross-sectional study. Sci Rep 15, 1999 (2025). https://doi.org/10.1038/s41598-025-85134-8

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Inflammatory Skin Diseases in Children Linked to Sleep and Psychological Disorders: Study

Researchers have found in a new research that children with inflammatory skin conditions such as atopic dermatitis, psoriasis, or urticaria face a significantly higher risk of developing sleep disorders (e.g., hypersomnia, sleep apnea) and psychological issues (e.g., depression, anxiety). The study, published in the Journal of the American Academy of Dermatology, emphasizes the need for clinicians to address the broader impacts of skin diseases on children’s overall well-being.

Inflammatory skin diseases such as atopic dermatitis (AD), psoriasis, and urticaria are associated with impaired mental health and sleep. In children the risk of developing these comorbidities is still poorly evaluated. Retrospective data analysis of a US Collaborative Network including children of 55 health care providers was performed. Data from electronic health records of patients with a diagnosis of either AD, psoriasis, or urticaria, as well as a control cohort were retrieved in an anonymized batch format and propensity score matched.

Results: Children with psoriasis had a 3.2-fold higher risk of hypersomnia, 2.1-fold higher risk of sleep apnea, 1.8-fold higher risk of fatigue, and 1.9-fold higher risk of depression. Children with urticaria (acute or chronic) and AD had a 1.7-fold higher risk of sleep disorders, 1.6-fold higher risk of anxiety disorders, and 1.4-fold higher risk of insomnia. AD children had a 1.5-fold higher risk of anxiety disorders. Electronic health insurance data are not subject to random sampling of the general population and potential misdiagnosis is possible. Children with inflammatory skin diseases were at a higher risk of sleep psychological disorders. Thus, regularly performed screenings and appropriate treatment initiation might potentially prevent mental and physical health consequences and secure improved life quality.

Reference:

Risk of developing sleep disorders and psychologic comorbidity in children with inflammatory skin diseases—A population-based study Mann, Caroline et al. Journal of the American Academy of Dermatology, Volume 0, Issue 0

Keywords:

Inflammatory, Skin, Diseases, Children, Linked, Sleep, Psychological, Disorders, Study, Journal of the American Academy of Dermatology, Anxiety, atopic dermatitis, depression, pruritus, psoriasis, psychological burden, sleep apnea

sleep disorders, urticaria

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Ultrasound vs. Clinical Assessment: Revolutionizing Predictions for Difficult Laryngoscopy, study finds

Recent study investigates the effectiveness of the El-Ganzouri risk index (EGRI) and skin-to-epiglottis distance (SED) as predictors of difficult laryngoscopy, which is a critical component of airway management in anesthesia. Conducted on 129 patients classified as American Society of Anesthesiologists (ASA) class I or II, aged between 25 and 70, the research focused on comparing these two assessment methods prior to tracheal intubation. Various preoperative assessments were performed, including EGRI, which incorporates factors such as mouth opening, thyromental distance, head and neck movements, obesity, and previous intubation difficulties. The study sought to correlate these preoperative findings with laryngoscopic views classified by the Cormack-Lehane (CL) grading system, which determines the visibility of the glottis during intubation. Results indicated that the EGRI exhibited a sensitivity of 88.9%, specificity of 6.7%, positive predictive value (PPV) of 33.3%, and negative predictive value (NPV) of 99%. In contrast, the SED demonstrated superior diagnostic performance with a sensitivity of 96%, specificity of 100%, PPV of 100%, and NPV of 99% when a threshold of 18 mm was applied. These findings underscore the utility of sonographically measured SED as a more reliable parameter for anticipating challenging intubations.

ROC Analysis

The study employed a receiver operating characteristic (ROC) analysis to evaluate the predictive capabilities of both EGRI and SED. The area under the ROC curve (AUC) for SED was significantly higher at 0.995, compared to 0.662 for EGRI, suggesting that SED measurements provide more accurate predictions of difficult laryngoscopy. Furthermore, a new cut-off for SED was proposed based on ROC analysis, setting the optimal threshold at 15 mm for enhanced predictive value, despite the study utilizing 18 mm as the operational cut-off.

Patient Assessment

During the assessment, patients were positioned appropriately to simulate the conditions of real intubation, and trained anesthesia personnel performed ultrasound measurements to determine SED at the level of the thyrohyoid membrane. The laryngoscopic evaluation revealed that 24 patients (18.6%) experienced difficult laryngoscopy, as classified under CL grades III and IV.

Methodology Comparison

The analysis also drew comparisons to existing airway assessment methods, accentuating the limitations of solely clinical parameters and the variability in their predictive performance due to confounding factors such as inter-observer differences. The superior accuracy of ultrasound-based measurements suggests a shift towards integrating sonographic techniques in routine preoperative airway assessments.

Conclusion and Future Directions

In conclusion, the findings establish that sonologically assessed SED surpasses EGRI in sensitivity and specificity for predicting difficult laryngoscopy, emphasizing its role as a critical adjunct to conventional clinical tests. The proposed combined scoring system, integrating SED and EGRI, aims to further refine the predictive ability regarding laryngoscopy difficulties, although further research with larger sample sizes is warranted to validate these results and the proposed scoring methodology. The study advocates for the adoption of SED in clinical practice to enhance preoperative airway management strategies.

Key Points –

– **Study Design and Population**: The investigation involved 129 patients classified as ASA class I or II, aged 25 to 70. The focus was on comparing the effectiveness of the El-Ganzouri risk index (EGRI) and skin-to-epiglottis distance (SED) in predicting difficult laryngoscopy prior to tracheal intubation.

– **Predictive Performance of EGRI and SED**: Results indicated that EGRI had a sensitivity of 88.9%, specificity of 6.7%, a positive predictive value (PPV) of 33.3%, and a negative predictive value (NPV) of 99%. In contrast, SED demonstrated significantly higher performance with sensitivity of 96%, specificity of 100%, PPV of 100%, and NPV of 99%, especially when using a threshold of 18 mm.

– **ROC Analysis Findings**: Receiver operating characteristic (ROC) analysis showed that the area under the ROC curve (AUC) for SED was 0.995, indicating excellent predictive capability, while EGRI’s AUC was only 0.662. A new optimal cut-off for SED was suggested at 15 mm for enhanced predictive ability.

– **Ultrasound Measurement Methodology**: Patients were accurately positioned for real intubation scenarios, and trained anesthesia personnel utilized ultrasound to measure SED at the thyrohyoid membrane level. Difficult laryngoscopy (CL grades III and IV) was observed in 18.6% of the subjects during laryngoscopic evaluations.

– **Limitations of Existing Assessments**: The study highlighted limitations found in existing airway assessment methods, particularly emphasizing the inadequacies of relying solely on clinical parameters, which can be affected by inter-observer variability. Ultrasound-based measurements provide a more objective and reliable approach.

– **Conclusion and Recommendations**: Findings support that sonologically assessed SED is superior to EGRI for predicting difficult laryngoscopy and propose a combined scoring system incorporating both factors for improved accuracy. The study recommends the integration of SED into clinical practice for better preoperative airway management, while also calling for further research with larger samples to validate the results.

Reference –

Fareeda Karimbanakkal et al. (2025). Comparison Between El-Ganzouri Risk Index And Sonologically Measured Skin-To-Epiglottis Distance For Predicting Difficult Laryngoscopy: A Prospective Observational Study. *Indian Journal Of Anaesthesia*. https://doi.org/10.4103/ija.ija_896_24.

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Pain Mitigation Strategies: Shouldering the burden of how to treat shoulder pain

Shoulders are, in many ways, a marvel. One shoulder has four separate joints, packed with muscles, that allow us to move our arm in eight different major ways, giving us the most degrees of freedom of any joint in the body. We can swim, toss, hug, and even punch because of the movement our shoulders enable.

But the same complexity that allows us such motion also presents opportunities for pain when something goes wrong. Another complication: shoulders change as we age, and new types of injuries come with it. Clinical practitioners face the daunting task of keeping up on the latest developments to treat a range of injuries as wide as Michael Phelps’ wingspan.

“It’s not that shoulder problems are unique to one particular age or for one particular group of individuals, but rather that they can arise throughout our lifetime,” said Paul Salamh, visiting associate professor of rehabilitation sciences at Tufts University School of Medicine. “Because we ask our shoulders to do so much, they’re vulnerable to a wide range of issues.”

It can also be a challenge for health care providers to keep up with all of the latest evidence-based research on treating shoulder injuries. That’s why Salamh served as the lead author on two recently published papers, the research for which was conducted while he worked at the University of Indianapolis, about efforts to help coalesce this information and make it easier for everyone to understand.

In a paper published recently in the International Journal of Sports Physical Therapy, Salamh and other researchers conducted a systematic review of 19 papers on shoulder injuries. That review included four studies encompassing 7,802 athletes in baseball, handball, swimming, tennis, cricket, American football, and also multi-sport athletes and people in the military. The reason to focus on athletes, Salamh said, was because the rate of shoulder and elbow pain in athletes in these “overhead” sports is increasing. A 2022 study estimated that nearly 11% of athletes between the ages of 5 to 18 years old experience a shoulder injury.

Overall, the research team found five risk factors for athletes developing shoulder pain, two that can’t be changed (local and regional musculoskeletal pain) and three that can (range of motion, strength, and training load). 

These findings are supportive of a drilling-down approach to risk factors specific to body region, sport, and where applicable, position played in that sport, said Salamh, who also serves as director of research for the Doctor of Physical Therapy Phoenix program at the School of Medicine. “There is a lot that can be looked at specifically in each sport. For example, the range of motion that would predispose a swimmer to a shoulder injury is different than that for someone playing lacrosse,” he said, adding that the same is true with strength of muscle or muscle groups within a particular sport.

In a paper published recently in the Journal of Manual and Manipulative Therapy, Salamh and a team of researchers addressed a decade’s worth of research on the risk factors, etiology, diagnosis, and management of frozen shoulder, an inflammatory condition that causes unrelenting stiffness and pain in the shoulder that can last for years.

For this paper, 14 international experts discussed and identified possible risk factors for the condition and symptoms that most often lead to a diagnosis. They also examined 33 different treatment options and categorized them into effectiveness for treating frozen shoulder in its earlier stages when pain is more prominent than stiffness, and later stages, when stiffness is a bigger problem than pain. 

“The treatment we would intervene with varies significantly depending on the stage of the condition,” Salamh said. “Depending on where they are in this process, we could be doing something that could be more painful and create more problems for individuals than be helpful.”

Overall, Salamh hopes that these types of papers and future research can lead to better understanding of what this unique joint requires to stay healthy along the course of our lives. “We want to take the complexity of the shoulder and not simplify it but make it more manageable and digestible for patients, clinicians, and researchers,” he said.

Reference:

Paul Salamh, Garrett Bullock, Rachel Chester, Helena Daniell, Chad Cook, Matthew DeLang, Hannah-Rose Tucker, Douglas Walker, Jeremy Lewis, Risk Factors Associated with New Onset of Shoulder Pain and Injury Among the Athletic Population: A Systematic Review of the Literature, https://doi.org/10.26603/001c.129462

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New study reveals potential link between GLP1 agonists and depression: Calls for urgent attention

A groundbreaking study published in the journal Current Neuropharmacology highlights a concerning potential link between Glucagon-like Peptide-1 (GLP1) receptor agonists-widely used in blockbuster drugs like Ozempic-and the risk of depression and suicidal ideation (SI). Using advanced pharmacogenomic computational analyses, the international team of 24 researchers revealed genetic pathways that may induce depressive phenotypes in users of GLP1 agonists, raising significant concerns about the safety of these medications for certain individuals.

The study, led by researchers across the United States, Brazil, Iran, and Israel, demonstrates that while GLP1 agonists benefit individuals with hyperdopaminergia (excess dopamine activity), they may have harmful effects on individuals with hypodopaminergia (low dopamine function). The authors found genetic associations between GLP1 receptor agonists and genes such as DRD3, BDNF, and CREB1, which are implicated in mood regulation and reward pathways. Their findings suggest that chronic use of these drugs could dysregulate dopamine signaling, potentially leading to depressive symptoms, mood disturbances, and SI.

Cautionary Voices from Experts

While the idea of GLP1 agonism induction of depression and SI is controversial with both negative and positive reporting, based on the evidence presented in this article by Alireza Sharafshah, a PhD candidate from Cellular and Molecular Research Center, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran, the authors caution against promoting chronic stimulation via GLP-1 agonists.

“This study should not be ignored, despite the hype surrounding the positive clinical outcomes of GLP1 receptor agonists,” said senior author Dr. Kenneth Blum, Research Professor at Western University Health Sciences and Ariel University. “We urge the clinical prescribing community to proceed with caution to avoid another tragic wave of ‘people dying to lose weight.’”

Dr. Mark S. Gold, an addiction psychiatry pioneer and co-author, emphasized, “The paper provides critical evidence for re-evaluating the widespread use of GLP1 receptor agonists. The FDA and other regulatory agencies should carefully consider our findings when it comes to labeling and monitoring these drugs.”

Rising Global Concerns

Professor Albert Pinhasov, Provost of Ariel University, echoed these sentiments, stating, “While there are encouraging short-term benefits of GLP1 receptor agonists, we must acknowledge the potential risks highlighted in this study. These findings should encourage regulatory agencies and clinicians to investigate further, given the heterogeneity of the human population.”

The European Medicines Agency (EMA) has already initiated a review of GLP1 agonists following reports of suicidal thoughts and other psychiatric adverse events. Co-author Dr. Kai Uwe Lewandowski, Professor of Surgery at the University of Arizona School of Medicine, noted, “Depression was the most commonly reported adverse event associated with these drugs, followed by anxiety and suicidal ideation. Our findings strongly support a need for further investigation to safeguard public health.”

The Role of Genetic Testing

The study advocates for personalized medicine approaches, including genetic testing for hypodopaminergia, to identify individuals at risk before prescribing GLP1 receptor agonists. Professor Panayotis K. Thanos of Buffalo University commented, “Before prescribing GLP1 receptor agonists, it would be prudent to use genetic testing tools to assess a patient’s dopamine function and addiction risk profile.”

Balancing Hope with Vigilance

Professor Igor Elman of Harvard University warned, “While GLP1 receptor agonists hold promise for treating addictive and behavioral disorders, we must remain vigilant about their potential harm. This study is not intended to break the bubble of hope but to add a layer of precaution in their over-prescription.”

Reference:

 Alireza Sharafshah, Kai-Uwe Lewandrowski, Mark S. Gold, Brian Fuehrlein, John Wesson Ashford, Panayotis K. Thanos, Gene Jack Wang, Colin Hanna, Jean Lud Cadet,  In Silico Pharmacogenomic Assessment of Glucagon-like Peptide-1 (GLP1) Agonists and the Genetic Addiction Risk Score (GARS) Related Pathways: Implications for Suicidal Ideation and Substance Use Disorder, Current Neuropharmacology, DOI: 10.2174/011570159X349579241231080602.

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