Neo-innervation of a bioengineered intestinal smooth muscle construct around chitosan scaffold

Neuromuscular disorders of the gut result in disturbances in gastrointestinal transit. The objective of this study was to evaluate the neo-innervation of smooth muscle in an attempt to restore lost innervation. We have previously shown the potential use of composite chitosan scaffolds as support for intestinal smooth muscle constructs. However, the constructs lacked neuronal component. Here, we bioengineered innervated colonic smooth muscle constructs using rabbit colon smooth muscle and enteric neural progenitor cells. We also bioengineered smooth muscle only tissue constructs using colonic smooth muscle cells. The constructs were placed next to each other around tubular chitosan scaffolds and left in culture. Real time force generation conducted on the intrinsically innervated smooth muscle constructs showed differentiated functional neurons. The bioengineered smooth muscle only constructs became neo-innervated. The neo-innervation results were confirmed by immunostaining assays. Chitosan supported (1) the differentiation of neural progenitor cells in the constructs and (2) the neo-innervation of non-innervated smooth muscle around the same scaffold.     

3D Ultrasound Strain Imaging of Puborectalis Muscle

The female pelvic floor (PF) muscles provide support to the pelvic organs. During delivery, some of these muscles have to stretch up to three times their original length to allow passage of the baby, leading frequently to damage and consequently later-life PF dysfunction (PFD). Three-dimensional (3D) ultrasound (US) imaging can be used to image these muscles and to diagnose the damage by assessing quantitative, geometric and functional information of the muscles through strain imaging. In this study we developed 3D US strain imaging of the PF muscles and explored its application to the puborectalis muscle (PRM), which is one of the major PF muscles.     

Endoscopic bariatric and metabolic therapies: Another tool for the management of diabetes and obesity

Endoscopic bariatric and metabolic therapies (EBMTs) have sparked significant interest as minimally invasive therapeutic options for weight loss. Although bariatric surgery remains an effective option for sustained weight loss and improvement in the metabolic syndrome, access and utilization are limited. Various EBMTs have been designed to emulate the physiologic effects of established surgical interventions, including space‐occupying and non‐space‐occupying gastric therapies, gastric remodeling procedures, and small bowel therapies. This review discusses the safety and efficacy of available US Food and Drug Administration‐approved minimally invasive endoscopic bariatric interventions, as well as those currently under investigation. In addition, the role of endoscopic revision after failed surgical intervention is discussed.     

Cannula dacryocystorhinostomy: a simple,innovative and cost-effective method of lacrimal surgery

To compare our innovative, cost-effective method of lacrimal surgery with other methods. A prospective cohort study. The study included 80 eyes of 80 consecutive patients who presented to our clinic between January 2009 and December 2011. The patients underwent surgery using a new technique with a specially designed cannula and were followed according to our protocol. Patency on irrigation. Of the 80 cases enrolled, the procedure was successful in 52.5 % with a mean follow-up of 247.2 days. The success rate was significantly affected by the preoperative conditions (p = 0.001) and follow-up duration (p = 0.006). This simple innovative technique was cost-effective and the results were comparable with those of other techniques.     

Ex-situ Evaluation of Chironomid Larvae as a Potential Supplementary Food in Aquaculture

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences - Due to the steady growth of the human population, the demand for fish as dietary protein increases globally....     

COVID-19, stigma,and people with disabilities: A mental health perspective

Discrimination is an age-old ‘illness’ irrespective of its context. Stigma is a common factor that has been associated with disability and coronavirus disease 2019. The public health impact of stigma on differently-abled people during this pandemic is not known and it is a poorly investigated and neglected area. It is important to address the current research need in the concerned area and its implications for public health policymaking and changes in practices that it requires. Together we can win the war against pandemics if we reduce the mental distancing in all perspectives.