Virgin coconut oil - its methods of extraction, properties and clinical usage: a review.

Abstract: Virgin coconut oil (VCO) is a processed edible oil, which is removed from the mature coconuts. It is a colourless water insoluble liquid and obtained by the hot and cold extraction processes. The nutritional components of VCO are mainly contributed to by lauric acid, its primary content. VCO has shown its anticancer, antimicrobial, analgesic, antipyretic and antiinflammatory properties. Because of these medicinal properties, VCO has gained the wider attention among the medical field. Most evidently VCO has shown its potential antioxidant property, because of its phenolic compounds and medium chain fatty acids. It is one of the beneficial compounds used to prevent and treat the oxidative stress induced neurological disorders like stress, depression and Alzheimer's disease. Dietary supplementation of VCO is easy and economical and safer in daily life among all age groups. It is also beneficial for the cardiovascular, respiratory, dermatological, reproductive and bone health. It can also be applied to the skin as a moisturizer in the paediatric age group. Hence, exploration of antioxidant property as well as other beneficial effects of VCO in various health conditions will be valuable.

EPA Consensus Project Paper: Do Implant Retained Prostheses Improve the Quality of Life of Patients with Extraoral Maxillofacial Defects - A Systematic Review.

BACKGROUND: There is limited evidence available regarding patient satisfaction and quality of life assessment in patients with extraoral maxillofacial prostheses. OBJECTIVES: This systematic review aims to understand the impact of extraoral implant retained prosthesis in improving the quality of life in patients with extraoral maxillofacial defects/abnormalities. METHODS: A comprehensive search was performed of nine electronic databases up to August 2022, which yielded three articles that satisfied the inclusion criteria. The study characteristics and findings were extracted, and the included studies were assessed for quality. RESULTS: Three cohort studies were selected. Despite the lack of uniformity in the quality of life instruments, there was a general trend in improvement in the quality of life for patients with implant retained extraoral prostheses. The studies were also deemed to be of high quality on assessment. CONCLUSION: Given the limitations of this systematic review, there exists limited evidence indicating that implant prostheses may enhance the quality of life for individuals with extraoral maxillofacial defects or abnormalities.

Outcome measures of the surgery first approach for orthognathic correction of dentofacial deformities.

In the surgery-first approach (SFA), orthognathic surgery is performed without the need for presurgical orthodontic treatment. This study was aimed at assessing the treatment durations and occlusal outcomes for a consecutive cohort of patients, with a range of dentofacial deformities, who had completed orthognathic treatment using SFA. The duration of orthognathic treatment was measured. The overall change in occlusion, and the quality of the final occlusion, were evaluated using the patients' study casts. A single, independent, calibrated operator carried out the occlusal scores, using the validated Peer Assessment Rating (PAR) index. This was repeated to test intraoperator reliability. A total of 51 patients completed surgery-first treatment during the study period. The mean (range) age at surgery was 23.3 (15-47) years. The pre-treatment skeletal jaw relationship was Class III in 39 cases, and Class II in 12 cases. The mean (SD) overall treatment duration was 11.7 (5.7) months. The intraexaminer reliability of assessing the occlusion was high. The PAR scores confirmed a significant improvement in the quality of occlusion at the completion of treatment, which compares favourably with previous studies on the conventional orthodontics-first approach. The surgery first approach can be effective at correcting both Class II and Class III malocclusion types with reduced treatment times.

COMPARISON OF TRANSCRANIAL AND TRANSSPHENOIDAL APPROACHES IN INTRA AND SUPRASELLAR PITUITARY ADENOMAS - SYSTEMATIC REVIEW.

Context: Pituitary adenomas are benign tumors, usually found in men in their 3rd and 5th decades of life, representing 10-15% of all intracranial tumors. The clinical manifestations include important endocrinological disturbances and visual impairment. Objective: This study aimed to determine the most suitable neurosurgical approach regarding the dimensions, extensions and invasiveness of tumor extensions. Design: This was a systematic review of the literature from 2002-2022, focused on clinical outcome, especially endocrinological state according to the surgical approach. Subjects and Methods: We performed an advanced search on Web of Science and PubMed databases on October 10th, 2022. The literature showed 300 studies in the last 20 years, and after we applied the inclusion and exclusion criteria's, 19 studies were fully read and analyzed. Results: Postoperative complications were reviewed in each surgical approach group, including visual impairment, new endocrinological disturbances, diabetes insipidus and cerebrospinal fluid leakage. Analyze of the endocrinological findings did not determined differences in transcranial groups from transsphenoidal groups. Overall complications were identified in the transcranial cohorts, while cerebrospinal fluid leakage still represent the main problem in transsphenoidal groups. The majority of studies found included extended endoscopic transsphenoidal approach, which shows results of great potential. Conclusions: For the surgical treatment of pituitary adenoma, transsphenoidal procedure with or without extended approaches is preferred, but they're cases when a craniotomy is mandatory for a feasible gross tumor resection. Combined "above and below" simultaneous procedure or a two-staged intervention is recommended for giant pituitary adenoma, to maximize tumor resection and lower the risk of cerebrospinal fluid leakage.

Gross Negligence: Impacts of Microplastics and Plastic Leachates on Phytoplankton Community and Ecosystem Dynamics.

Plastic debris is an established environmental menace affecting aquatic systems globally. Recently, microplastics (MP) and plastic leachates (PL) have been detected in vital human organs, the vascular system, and in vitro animal studies positing severe health hazards. MP and PL have been found in every conceivable aquatic ecosystem─from open oceans and deep sea floors to supposedly pristine glacier lakes and snow covered mountain catchment sites. Many studies have documented the MP and PL impacts on a variety of aquatic organisms, whereby some exclusively focus on aquatic microorganisms. Yet, the specific MP and PL impacts on primary producers have not been systematically analyzed. Therefore, this review focuses on the threats posed by MP, PL, and associated chemicals on phytoplankton, their comprehensive impacts at organismal, community, and ecosystem scales, and their endogenous amelioration. Studies on MP- and PL-impacted individual phytoplankton species reveal the production of reactive oxygen species, lipid peroxidation, physical damage of thylakoids, and other physiological and metabolic changes, followed by homo- and heteroaggregations, ultimately eventuating in decreased photosynthesis and primary productivity. Likewise, analyses of the microbial community in the plastisphere show a radically different profile compared to the surrounding planktonic diversity. The plastisphere also enriches multidrug-resistant bacteria, cyanotoxins, and pollutants, accelerating microbial succession, changing the microbiome, and thus, affecting phytoplankton diversity and evolution. These impacts on cellular and community scales manifest in changed ecosystem dynamics with widespread bottom-up and top-down effects on aquatic biodiversity and food web interactions. These adverse effects─through altered nutrient cycling─have "knock-on" impacts on biogeochemical cycles and greenhouse gases. Consequently, these impacts affect provisioning and regulating ecosystem services. Our citation network analyses (CNA) further demonstrate dire effects of MP and PL on all trophic levels, thereby unsettling ecosystem stability and services. CNA points to several emerging nodes indicating combined toxicity of MP, PL, and their associated hazards on phytoplankton. Taken together, our study shows that ecotoxicity of plastic particles and their leachates have placed primary producers and some aquatic ecosystems in peril.

Efficacy of Radial Endobronchial Ultrasound (R-EBUS) guided transbronchial cryobiopsy for peripheral pulmonary lesions (PPL...s): A systematic review and meta-analysis.

BACKGROUND: Transbronchial lung cryobiopsy (TBLC) is frequently described for the diagnosis of diffuse parenchymal lung diseases (DPLD). A few studies have reported transbronchial cryobiopsy for the diagnosis of peripheral pulmonary lesions (PPL...s). We aimed to study the utility and safety of transbronchial cryobiopsy for the diagnosis of PPL...s. METHODS: We performed a systematic search of the PubMed and Embase databases to extract the relevant studies. We then performed a meta-analysis to calculate the diagnostic yields of transbronchial cryobiopsy and bronchoscopic forceps biopsy. RESULTS: Following a systematic search, we identified nine relevant studies (300 patients undergoing cryobiopsy). All used Radial Endobronchial Ultrasound (R-EBUS) for PPL localization. The pooled diagnostic yield of transbronchial cryobiopsy was 77% (95% CI, 71%...84%) (I^2=38.72%, p=0.11). The diagnostic yield of forceps biopsy was 72% (95% CI, 60%...83%) (I^2=78.56%, p<0.01). The diagnostic yield of cryobiopsy and forceps biopsy was similar (RR 1.05, 95% CI 0.96...1.15), with a 5% risk difference for diagnostic yield (95% CI, ...6% to 15%). There was significant heterogeneity (I^2=57.2%, p=0.017), and no significant publication bias. One severe bleeding and three pneumothoraxes requiring intercostal drain (ICD) placement (major complication rate 4/122, 1.8%) were reported with transbronchial cryobiopsy. CONCLUSIONS: R-EBUS guided transbronchial cryobiopsy is a safe and efficacious modality. The diagnostic yields of TBLC and forceps biopsy are similar. More extensive multicentre randomized trials are required for the further evaluation and standardization of transbronchial cryobiopsy for PPL...s.

Evaluating Adherence to Concomitant Diabetes, Hypertension, and Hyperlipidemia Treatments and Cardiovascular Outcomes Among Elderly Patients Using Marginal Structural Modeling.

INTRODUCTION: Comorbid diabetes, hypertension, and hyperlipidemia is associated with an adverse effect on cardiovascular (CV) outcomes. Adherence to concurrent anti-diabetics, anti-hypertensives, and lipid-lowering therapies is essential to achieve therapeutic benefits. AIM: The objective was to evaluate the association between adherence to concomitant oral antidiabetics, statins, and RAS antagonists (triple therapy) and CV outcomes, among elderly patients using marginal structural modeling (MSM). METHODS: A retrospective study was conducted among patients on concurrent triple therapy from January 2016 until December 2019. Adherence to concurrent triple therapy was measured every 6 months using proportion of days covered (PDC) to determine the different adherence groups. CV outcomes were also measured every 6 months. A MSM controlling for baseline covariates and time-varying confounders affected by prior adherence was conducted to evaluate the association between adherence and CV outcomes. A sub-analysis was conducted among patients with prior CV events to evaluate the association between adherence to triple therapy and CV outcomes using MSMs. RESULTS: The final cohort comprised of 7433 patients. The MSM model revealed no significant associations between adherence to triple/double therapies and cardiovascular outcomes. For sub-analysis, 471 patients with a prior CV event were identified. Results of the sub-analysis revealed no significant associations between adherence to triple/double therapies and CV outcomes among patients with prior CV events. CONCLUSION: Future studies should evaluate the association with longer follow-up periods.

Utilization of non-vascularized bone graft with regional flap as an alternative for facial reconstruction.

Mandibular resections decision is one of the most important steps in oral cavity malignant or nonmalignant lesions associated with the mandible. The role of mandibular reconstruction is not only for cosmesis, but it is also indicated for functional rehabilitation such as swallowing, phonetics, and for facial symmetrical. Even though the free tissue transfer is considered a gold standard for mandibular reconstruction, the importance of nonvascularized bone grafts (NVBGs) such as fibula, calvarium, rib, sternum, and iliac are still persisting in mandibulectomies condition like patient who have not taken radiotherapy or not willing to undergo radiotherapy or not fit for free tissue transfer and provides a good contour of mandibular replacement. The success rate of NVBG depends upon patient selection, preoperative planning, and meticulous nursing care. Addition to NVBG, regional flaps such as pectoralis major myocutaneous (PMMC) flap will help in soft-tissue replacement of the defect as well as it will help in the situation where primary closure and airtight closure is not possible. This case report will discuss in detail about the management of anterior segmental mandibulectomy due to oncological resection and reconstruction with NVBG with fibula and PMMC.

Treatment of Pharma Effluent using Anaerobic Packed Bed Reactor.

The treatment of pharmaceutical effluent using an appropriate technology has become so important. Anaerobic packed bed reactor is an efficient method for pharmaceutical effluent treatment because of the high organic content present in it. In this study, a heavy-polluted pharma effluent is treated using an anaerobic packed bed reactor. The performance of the anaerobic reactor was identified with respect to chemical oxygen demand (COD) removal, methane yield, and gas production. The results showed that COD was reduced from 73% to 60% for an organic loading rate (OLR) of 0.6036-1.7487 kg COD m-3·d-1. As the OLR increases, the removal efficiency of COD decreases gradually to around 52% for an OLR of 2.34 kg COD m-3·d-1.

Somato-somatic theory of referred pain elucidates observations of referred sensations during micropigmentation of nipple-areolar complex in a cohort study on patients undergoing pedicled latissimus dorsi flap breast reconstruction.

AIM: Micropigmentation of the nipple-areolar complex is the final aesthetic step in autologous breast reconstruction. The mechanism of referred pain observed in patients during micropigmentation after a non-neurotonized pedicled latissimus dorsi flap breast reconstruction is poorly understood. METHODS: Patients undergoing micropigmentation for nipple-areolar restoration at our breast unit were included in this study. Baseline sensitivity of both breasts was recorded using a questionnaire and non-invasive Semmes-Weinstein monofilament testing. Patients experiencing local and regional referred symptoms, while undergoing micropigmentation, were identified and their clinical data were collected and analysed. Three months postoperatively, the patients completed a questionnaire pertaining to their satisfaction and future analgesic preference. RESULTS: Thirty (17.8%) patients experienced referred sensations during micropigmentation. Their symptoms ranged from "ache" (6.7%), "discomfort" (13.3%) to "deep pain" (13.3%) and were either local and/or referred to ipsilateral axilla, upper limb and back. The majority were pleased with postoperative outcomes [shape (30, 100%), size (28, 93.3%), colour match (22, 73.3%)] and a small number were not satisfied with the shape (2, 6.7%,) position (1, 3.3%) and appearance of the tattoo (1, 3.3%). CONCLUSION: Micropigmentation is a safe procedure with good patient satisfaction and low rates of complications; however, patients may experience significant local or referred symptoms. This observation can be explained by the proposed "somato-somatic" theory of referred pain and ascertains the need for use of oral and/or local anaesthetic as well as improved counselling in these patients.

Fossil Thalamoporellidae (Bryozoa) from PaleogeneNeogene sediments of western Kachchh, Gujarat, India.

Here we report on fourteen species of Thalamoporellidae (Bryozoa, Cheilostomatida) from PaleogeneNeogene sediments of the western Kachchh, Gujarat, India. Among these, eleven species are already known from these sediments, whereas two species, namely Thalamoporella badvei n. sp. and T. bhujensis n. sp., are new to science and one is left in open nomenclature. New combinations for two species originally placed in the genus Thalamoporella are also suggested: Dibunostoma transversum n. comb. and Reniporella reniformis n. comb. The genus Reniporella currently placed in the family Steginoporellidae is here re-assigned to Thalamoporellidae mainly based on the position of the opesiules.

Nanostructured nickel doped zinc oxide material suitable for magnetic, supercapacitor applications and theoretical investigation.

This Paper describes the synthesis of nickel doped ZnO is planned by chemical co-precipitation techniques. The prepared nanostructured nickel doped zinc oxide samples were analyzed by thermogravimetric differential thermal analysis (TG/DTA), X-ray diffraction (XRD), Fourier transform infra red (FTIR), field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), electron paramagnetic resonance (EPR), and cyclic voltametry (CV). Nanostructure nickel doped ZnO materials have developed as promising for the basis of its broad range of employing in diverse areas. The attractive properties of nickel doped ZnO materials are highly demanded in high-energy potential applications. The nickel doped zinc oxide materials are hexagonal wurtzite arrangement is confirmed by XRD. The morphological -features of FE-SEM show nickel doped zinc oxide NPs are the structure of spherical type with agglomeration. The calculated particle size 11 nm is confirmed by HR-TEM. EPR spectra of nickel doped zinc oxide nanoparticles are ferromagnetic nature. Further, CV studies of Ni doped ZnO materials of the specific capacitance value is 133 Fg-1 at the scan rate 10 mVs-1 it is suitable for super capacitor application. The quantum chemical calculations were done by using DFT techniques through B3LYP/LANL2DZ level of basis set.

Role of chest radiograph in predicting the need for ventilator support in COVID-19 patients.

Background: COVID-19 disease, a pandemic for more than two years, has major morbidity and mortality related to pulmonary involvement. Chest radiography is the main imaging tool for critically ill patients. As the availability of arterial blood gas analysis is limited in the Level I and II healthcare centres, which are major partners in providing healthcare in resource-limited times, we planned the present study. Objectives: To assess the role of chest radiography in predicting the need for oxygen/ventilator support in critically ill COVID-19 patients. Methods: This hospital-based, retrospective study included 135 patients who needed oxygen/ventilator support and had optimal-quality chest radiographs at admission. All the chest X-rays were evaluated and a severity score was calculated on a predesigned pro forma. Statistical evaluation of the data obtained was done using appropriate tools and methods. Results: Males outnumbered females, with a mean age of 54.35 ± 14.49 years. More than 72% of patients included in our study needed ventilator support while the rest needed oxygen support. There was a significant statistical correlation between the chest radiograph severity score and SPO2 /PaO2 levels in our study. Using a cut-off value >8 for the chest radiograph severity score in predicting the need for ventilator support in a Covid-19 patient, the sensitivity, specificity and accuracy was 85.7%, 92.5% and 89.5%, respectively. Conclusion: Chest radiography remains the mainstay of imaging in critically ill COVID-19 patients when they are on multiple life-support systems. Though arterial blood gas analysis is the gold standard tool for assessing the need for oxygen/ventilator support in these patients, the severity score obtained from the initial chest radiograph at the time of admission may also be used as a screening tool. Chest radiography may predict the need for oxygen/ventilator support, allowing time for patients to be moved to an appropriate-level healthcare centre, thus limiting morbidity and mortality.

Algal biopolymers as sustainable resources for a net-zero carbon bioeconomy.

The era for eco-friendly polymers was ushered by the marine plastic menace and with the discovery of emerging pollutants such as micro-, nano-plastics, and plastic leachates from fossil fuel-based polymers. This review investigates algae-derived natural, carbon neutral polysaccharides and polyesters, their structure, biosynthetic mechanisms, biopolymers and biocomposites production process, followed by biodegradability of the polymers. The review proposes acceleration of research in this promising area to address the need for eco-friendly polymers and to increase the cost-effectiveness of algal biorefineries by coupling biofuel, high-value products, and biopolymer production using waste and wastewater-grown algal biomass. Such a strategy improves overall sustainability by lowering costs and carbon emissions in algal biorefineries, eventually contributing towards the much touted circular, net-zero carbon future economies. Finally, this review analyses the evolution of citation networks, which in turn highlight the emergence of a new frontier of sustainable polymers from algae.

Pregnancies in women with Turner syndrome: a retrospective multicentre UK study.

OBJECTIVE: To determine the characteristics and outcomes of pregnancy in women with Turner syndrome. DESIGN: Retrospective 20-year cohort study (2000-20). SETTING: Sixteen tertiary referral maternity units in the UK. POPULATION OR SAMPLE: A total of 81 women with Turner syndrome who became pregnant. METHODS: Retrospective chart analysis. MAIN OUTCOME MEASURES: Mode of conception, pregnancy outcomes. RESULTS: We obtained data on 127 pregnancies in 81 women with a Turner phenotype. All non-spontaneous pregnancies (54/127; 42.5%) were by egg donation. Only 9/31 (29%) pregnancies in women with karyotype 45,X were spontaneous, compared with 53/66 (80.3%) pregnancies in women with mosaic karyotype 45,X/46,XX (P < 0.0001). Women with mosaic karyotype 45,X/46,XX were younger at first pregnancy by 5.5-8.5 years compared with other Turner syndrome karyotype groups (P < 0.001), and more likely to have a spontaneous menarche (75.8% versus 50% or less, P = 0.008). There were 17 miscarriages, three terminations of pregnancy, two stillbirths and 105 live births. Two women had aortic dissection (2.5%); both were 45,X karyotype with bicuspid aortic valves and ovum donation pregnancies, one died. Another woman had an aortic root replacement within 6 months of delivery. Ten of 106 (9.4%) births with gestational age data were preterm and 22/96 (22.9%) singleton infants with birthweight/gestational age data weighed less than the tenth centile. The caesarean section rate was 72/107 (67.3%). In only 73/127 (57.4%) pregnancies was there documentation of cardiovascular imaging within the 24 months before conceiving. CONCLUSIONS: Pregnancy in women with Turner syndrome is associated with major maternal cardiovascular risks; these women deserve thorough cardiovascular assessment and counselling before assisted or spontaneous pregnancy managed by a specialist team. TWEETABLE ABSTRACT: Pregnancy in women with Turner syndrome is associated with an increased risk of aortic dissection.

COVID-19 impacts and adaptations in Asia and Africa's aquatic food value chains.

The COVID-19 pandemic is a shock affecting all areas of the global food system. We tracked the impacts of COVID-19 and associated policy responses on the availability and price of aquatic foods and production inputs during 2020, using a high frequency longitudinal survey of 768 respondents in Bangladesh, Egypt, India, Myanmar, Nigeria. We found the following: (1) Aquatic food value chains were severely disrupted but most effects on the availability and accessibility of aquatic foods and production inputs were short-lived. (2) Impacts on demand for aquatic foods, production inputs, and labor have been longer lasting than impacts on their supply. (3) Retail prices of aquatic foods spiked briefly during March-May 2020 but trended down thereafter, whereas prices of production inputs rose. These trends suggest a deepening 'squeeze' on the financial viability of producers and other value chain actors. (4) Survey respondents adapted to the challenges of COVID-19 by reducing production costs, sourcing alternative inputs, diversifying business activities, leveraging social capital, borrowing, seeking alternative employment, and reducing food consumption. Many of these coping strategies are likely to undermine well-being and longer-term resilience, but we also find some evidence of proactive strategies with potential to strengthen business performance. Global production of aquatic food likely contracted significantly in 2020. The importance of aquatic food value chains in supporting livelihoods and food and nutrition security in Asia and Africa makes their revitalization essential in the context of COVID-19 recovery efforts. We outline immediate and longer-term policies and interventions to support this goal.

Dose-dense Paclitaxel and Carboplatin as Neoadjuvant Chemotherapy for Stage IIB/IIIA Non-small Cell Lung Cancer - A Phase II trial.

AIMS: The approach to potentially resectable non-small cell lung cancer (NSCLC) remains controversial. There is a benefit of neoadjuvant chemotherapy (NACT), but the ideal regimen is unknown. We evaluated the efficacy and safety of dose-dense NACT in potentially resectable NSCLC in this phase II trial. MATERIALS AND METHODS: Paclitaxel at 80 mg/m2 on days 1, 8 and 15 with AUC-6 carboplatin on day 1, 3 weekly for four cycles was evaluated as NACT. Patients with Eastern Cooperative Oncology Group performance status 0-2, stage IIB and IIIA (with only non-bulky N2 nodes) were included. The primary end point was the objective response rate. Secondary end points included toxicity, progression-free survival, recurrence-free survival, complete resection rate and overall survival. The relative dose intensity (RDI) was calculated to define tolerability (CTRI/2016/05/006916). RESULTS: In total, 37 patients were enrolled (median age 55 years). Most (78.8%) were smokers. Most patients had adenocarcinoma (57.6%) and stage IIIA disease (81.0%) according to the seventh American Joint Committee on Cancer staging system. Seventy-eight per cent of patients completed four cycles. The objective response rate was 75.6% with a complete response in 10.8%. The mean RDI of paclitaxel was 88.61%, with 68.0% of patients able to maintain an RDI ≥85.0%. In total, 187 toxicity events were recorded (120 grade 1, 64 grade 2 and three grade 3 events). Common toxicities were peripheral neuropathy (20.3%), myalgia (19.8%), nausea (15.7%) and neutropenia (10.2%). There were no treatment-related deaths. Seventeen patients underwent surgery (lobectomy 82.4%). After a median follow-up of 47 months (95% confidence interval 27-50.7 months), the median progression-free survival was 9.6 months (7.4-17.4) and overall survival was 29.2 months (16.0-37.2). CONCLUSION: Dose-dense paclitaxel-carboplatin is feasible, safe and efficacious and should be evaluated further in potentially resectable NSCLC.

Changes in Mode of Oxygen Delivery and Physiological Parameters with Physiotherapy in COVID-19 Patients: A Retrospective Study.

Background: Coronavirus disease (COVID-19) is an infectious disease caused by SARS-CoV-2, clinically presenting with common symptoms of fever, dry cough, and breathlessness within 14 days of exposure. Its severity ranges from mild to severe, latter manifesting into severe acute respiratory syndrome. As a part of multidisciplinary team, physiotherapy along with medical management was administered to patients with COVID-19 in an acute care setup. This retrospective study aims to explore various patient characteristics and will aid in identifying the impairments associated with the disease, giving a direction to the physiotherapy community in planning future management strategy to improve quality of life. Patients and methods: The present study is a unicentric study wherein prospective analysis of retrospective data of patients referred for physiotherapy from May 13 to July 31, 2020, was performed. (i) Characteristics of patients, (ii) associated comorbidities, (iii) hospital course since the time of admission to discharge, (iv) mode of oxygen delivery, (v) pre- and post-physiotherapy treatment values of oxygen saturation and heart rate, and (vi) physiotherapy treatment were recorded. The archived data were analyzed using the commercially available SPSS software version 24. Wilcoxon's matched pair test was used to compare pre- and post-treatment oxygen saturation and heart rate, and McNemar's test was used to compare mode of oxygen delivery and pre- and post-physiotherapy treatment. Results: Descriptive analysis of data showed a better outcome in terms of grade of dyspnea and rate of discharge on day 14 of physiotherapy treatment. Hence, a comparative analysis of day 1 and day 14 was performed for mode of oxygen delivery, oxygen saturation, and heart rate. A statistically significant improvement was observed in the heart rate (p = 0.001) and oxygen delivery (p = 0.000). However, no significant difference in the level of oxygen saturation was found (p = 0.6433). Conclusion: Physiotherapy treatment in conjunction with medical treatment can be effectively administered in patients with COVID-19 in acute care setup taking into consideration the health status and the hemodynamic stability of the patients. It emphasizes the role of physiotherapy in the alleviation of symptoms, facilitating early weaning and recovery enabling early discharge from the hospital. How to cite this article: Verma CV, Arora RD, Mistry HM, Kubal SV, Kolwankar NS, Patil PC, et al. Changes in Mode of Oxygen Delivery and Physiological Parameters with Physiotherapy in COVID-19 Patients: A Retrospective Study. Indian J Crit Care Med 2021;25(3):317-321.

Light-Emitting Atomically Precise Nanocluster-Based Flexible QR Codes for Anticounterfeiting.

Despite tremendous progress in the field of fluorescence-based anticounterfeiting, the advanced anticounterfeiting techniques are still posing challenges all over the world due to their cost and reliability. Recently, light-emitting atomically precise nanoclusters have emerged as attractive building blocks because of their well-defined structure, function, and stable photoluminescence. Herein, we report the room temperature fabrication of a stable, flexible, nontoxic, and low-cost precision nanocluster-based luminescent ink for the stencil printing of an optically unclonable security label. Nanocluster-based printing ink shows brilliant photoluminescence owing to its extended C-H···π/π···π interactions. Spectroscopic and microscopic investigations show that intercalated nanoclusters in the printed security labels are highly stable as their optical features and molecular compositions are unaffected. The exceptional mechanical, thermal, photo, and aqueous stabilities of the printed security labels endorse to demonstrate the printing and smartphone-based electronic reading of the quick response code on a currency. Finally, confidential information protection and decryption under a precise window of light have been achieved by adopting the optical contrast illusion. The overall cost of the security label is found to be approximately 0.013 USD per stamp.