Phospholipid Complex Formulation Technology for Improved Drug Delivery in Oncological Settings: a Comprehensive Review.

Addressing poor solubility and permeability issues associated with synthetic drugs and naturally occurring active compounds is crucial for improving bioavailability. This review explores the potential of phospholipid complex formulation technology to overcome these challenges. Phospholipids, as endogenous molecules, offer a viable solution, with drugs complexed with phospholipids demonstrating a similar absorption mechanism. The non-toxic and biodegradable nature of the phospholipid complex positions it as an ideal candidate for drug delivery. This article provides a comprehensive exploration of the mechanisms underlying phospholipid complexes. Special emphasis is placed on the solvent evaporation method, with meticulous scrutiny of formulation aspects such as the phospholipid ratio to the drug and solvent. Characterization techniques are employed to understand structural and functional attributes. Highlighting the adaptability of the phospholipid complex, the review discusses the loading of various nanoformulations and emulsion systems. These strategies aim to enhance drug delivery and efficacy in various malignancies, including breast, liver, lung, cervical, and pancreatic cancers. The broader application of the drug phospholipid complex is showcased, emphasizing its adaptability in diverse oncological settings. The review not only explores the mechanisms and formulation aspects of phospholipid complexes but also provides an overview of key clinical studies and patents. These insights contribute to the intellectual and translational advancements in drug phospholipid complexes.

Post-surgical Pyoderma Gangrenosum after Total Knee Arthroplasty: A Rare Case Report and Literature Review.

Introduction: Pyoderma gangrenosum (PG) following a primary total knee arthroplasty (TKA) surgery is extremely rare, with very few cases reported in the literature. Case Report: We report our clinical experience of a 65-year-old female who developed PG following a primary TKA surgery. Corticosteroids and local wound care with vacuum-assisted closure dressing helped achieve rapid improvement in the wound condition. Conclusion: Post-surgical PG in TKA can be challenging with limited evidence for its definitive treatment. A high degree of suspicion and a multidisciplinary management approach will help in the timely diagnosis and optimization of treatment for this condition.

An insight into the prokaryotic diversity from a polymetallic nodule-rich region in the Central Indian Ocean Basin using next generation sequencing approach.

Deep sea is a vast, dark, and difficult-to-access terrain and is now looked upon as a unique niche harboring diverse microorganism. We used a metataxonomic approach to decipher the microbial diversity present in the water column (surface to near bottom), water overlaying the sediments, and the deep-sea sediments (up to 35 cm) from the Indian Contract Region (ICR) in the Central Indian Ocean Basin (CIOB). Samples were collected from #IRZ (Impact Reference Zone), #PRZ (Potential Reference Zone), and #BC20 (Control site, outside potential mining area) with an average water depth of 5,200 m. 16S rRNA (V3-V4 region) amplicon sequencing on the MiSeq platform resulted in 942,851 ASVs across 65 water and sediment samples. Higher prokaryotic diversity was observed below 200 m in the water column to the seafloor. Proteobacteria was the most dominant bacterial phylum among all the water samples while Firmicutes, Actinobacteria and, Bacteroidota dominated the sediments. Sediment (below 10 cm) was co-dominated by Firmicutes. Thermoplasmata was the dominant archaeal group in the water column while Crenarchaeota was in the sediments. BC20 was less diverse than IRZ and PRZ. Deep Sea microorganisms could play a vital role in the mineralization processes, nutrient cycling, and also different biogeochemical cycles.

Sexual activity at 1 year after total hip arthroplasty in Indian patients.

PURPOSE: This study aimed to report changes in sexual activity and related difficulties and concerns among Indian patients at the end of 1-year after primary total hip arthroplasty (THA). MATERIALS AND METHODS: A detailed questionnaire related to sexual difficulty, frequency, position, satisfaction, stress, and concerns pre- and postoperatively was administered through an in-person interview at 1-year post-THA. RESULTS: Preoperatively, 77% of patients reported difficulties in sexual activities, which reduced significantly (p < 0.0001) to 30% at the end of 1-year post-operatively. A majority of patients reported no change in the frequency (56.5%) or satisfaction with their sexual activity (54%), and moderate to severe stress (53%) related to sexual activity at 1 year postoperatively. A significantly higher percentage (p = 0.01) of female patients (63%) reported changing their coital position postoperatively due to difficulty in leg positioning when compared to male patients (37.5%). Most patients (69%) were not able to procure information on sexual activity after THA surgery. and only 17.5% of patients discussed the topic with their surgeon. CONCLUSION: Although THA significantly reduced difficulty in sexual activity, most patients reported no change in the frequency of sexual activity or sexual satisfaction, had moderate to severe stress regarding sex, and were primarily concerned about safety of coital position and fear of dislocation at the end of 1-year postoperatively. Pre- and postoperative counselling by their surgeons will provide the patient with relevant information and help reduce anxiety and stress, improve satisfaction, and enhance the overall sexual health of the patient undergoing primary THA.

Symptomatic survey of COVID-19 in the rural health and demographic surveillance site of Maharashtra, India.

Introduction: The COVID-19 epidemic is fast-evolving and restrictions to contain it changes quickly. The secondary attack rate (SAR) indicates the infectiousness at the household level, and it provides a clue of load of infections in the community. Rapid implementation of a large scale, but brief survey provides a nationally representative view of the pandemic's progression and impact as well as the effect of the measures taken to control the spread. Materials and Methods: This cross-sectional study was done for a period of 2 months July-August 2020, in one of the rural health and demographic surveillance system (HDSS) site in India among 11,507 households having 46,571 individuals with the objective to determine the prevalence of the COVID-19 infection and to estimate the family SAR. The data were collected using the mobile phone by calling the head of the households registered under the HDSS. The research tool was created using questions based on the guidelines provided by the Ministry of Health and Family Welfare, India. The interviewers were first trained in data collection. Results: The households of 33,780 individuals were contacted and 33 patients were diagnosed as COVID positive, prevalence rate of 0.1% was thus documented through telephonic survey. The mean age of COVID patients was found to be 37 ± 16 years, and 63% of the diagnosed patients were males, majority of them belonged to above poverty line households. During the survey, 46 individuals reported to have the symptoms suggestive of COVID, fever and cough were the most commonly reported symptoms. The family SAR of 17.2% was documented. Conclusion: Thus to conclude a low COVID-19 prevalence rate of 0.1%, a higher family SAR of 17.2% was reported in the current study. Timely diagnosis and quarantine of close contacts should be continued to be implemented rigorously to prevent the spread of the COVID-19 virus. These efforts will be useful to contain the epidemic before it reaches an alarming level in the rural areas.

Résumé Introduction: L'épidémie de COVID-19 évolue rapidement et les restrictions pour la contenir changent rapidement. Le taux d'attaque secondaire (SAR) indique l'infectiosité au niveau du ménage et fournit un indice de la charge d'infections dans la communauté. La mise en œuvre rapide d'une enquête à grande échelle mais brève fournit une vue représentative à l'échelle nationale de la progression et de l'impact de la pandémie ainsi que de l'effet des mesures prises pour contrôler la propagation. Matériels et Méthodes: cette étude transversale a été réalisée sur une période de 2 mois de juillet à août 2020, dans l'un des sites du système de surveillance sanitaire et démographique en milieu rural (HDSS) en Inde auprès de 11 507 ménages comptant 46 571 individus dans le but de déterminer prévalence de l'infection au COVID-19 et d'estimer le DAS familial. Les données ont été collectées à l'aide du téléphone mobile en appelant le chef de ménage inscrit au HDSS. L'outil de recherche a été créé à l'aide de questions basées sur les directives fournies par le ministère indien de la Santé et du Bien-être familial. Les enquêteurs ont d'abord été formés à la collecte de données. Résultats: les ménages de 33 780 individus ont été contactés et 33 patients ont été diagnostiqués positifs au COVID, un taux de prévalence de 0,1 % a ainsi été documenté par une enquête téléphonique. L'âge moyen des patients COVID était de 37 ± 16 ans, et 63 % des patients diagnostiqués étaient des hommes, la majorité d'entre eux appartenant à des ménages au-dessus du seuil de pauvreté. Au cours de l'enquête, 46 personnes ont déclaré avoir des symptômes évocateurs de COVID, la fièvre et la toux étaient les symptômes les plus fréquemment signalés. Le SAR familial de 17,2 % a été documenté. Conclusion: Ainsi, pour conclure à un faible taux de prévalence de la COVID-19 de 0,1 %, un DAS familial supérieur de 17,2 % a été rapporté dans la présente étude. Le diagnostic rapide et la mise en quarantaine des contacts étroits doivent être poursuivis et mis en œuvre de manière rigoureuse pour empêcher la propagation du virus COVID-19. Ces efforts seront utiles pour contenir l'épidémie avant qu'elle n'atteigne un niveau alarmant dans les zones rurales. Mots-clés: COVID 19, système de surveillance sanitaire et démographique, téléphone portable, prévalence, milieu rural, taux d'attaque secondaire.

Time dependent decline of neutralizing antibody titers in COVID-19 patients from Pune, India and evidence of reinfection.

PURPOSE: To assess modulation of neutralizing antibody titers in COVID-19 patients and understand association of variables such as age, presence of comorbidity, BMI and gender with antibody titers. METHODS: Patients (n = 100) diagnosed from 20th March 2020 to 17th August 2020 and treated at two large hospitals from Pune, India were included and followed up (clinical and serologic) for varied periods. IgG-anti-SARS-CoV-2 (Spike protein-based ELISA) and neutralizing antibody titers (NAb, PRNT) were determined in all the samples. RESULTS: Of the 100 patients enrolled initially (median 60 days of diagnosis), follow up samples were collected from 70 patients (median 106 days of diagnosis). Overall, NAb titers reduced significantly (p < 0.001) and as early as 3-4 months. During two visits, 20% and 7.1% patients reported some symptoms. At the first visit, NAb titers were higher in patients with severe disease (p < 0.001), comorbidities (p < 0.005), age <50 years (p < 0.05) and male gender (p < 0.05). Multivariate analysis identified older age (p < 0.001), duration post-diagnosis and female gender as independent variables influencing NAb titers (negative correlation, p < 0.05). During the follow-up, reduction in NAb titers was recorded in patients with comorbidity (p < 0.05), mild disease (p < 0.05), age <50 years (p < 0.05), higher BMI (p < 0.05) and male gender (p < 0.001). Serology identified six cases of asymptomatic reinfections. CONCLUSIONS: Decline of NAb titers was associated with age <50 years, mild disease, comorbidities, higher BMI and male gender. At the time of follow up, 8/70 (11.4%) patients lacked neutralizing antibodies. Evidence of 6 probable asymptomatic reinfections suggests waning of immunity, but, probable protection from clinical disease needing hospitalization.

Predictors of 90-Day All-Cause Morbidity, Mortality and Poor Functional Outcome Scores Following Elective Total Knee Arthroplasty in a High-Volume Setting: A Prospective Cohort Study.

Background: The primary objective was to ascertain the predictors of 90-day all-cause morbidity, mortality and poor functional outcome scores following primary total knee arthroplasty (TKA). Material and Method: The study population comprised 3645 patients who underwent elective primary unilateral TKA at our institution. Demographic variables, Body Mass Index (BMI), American Society of Anesthesiologists (ASA) grade and the Deyo-Charlson comorbidity scores were ascertained. The Functional outcomes, perioperative complications, mortality and readmission rates were monitored prospectively for 90 days and analysed. Patients were assessed twice: at baseline and at 90 days postoperatively. Odds ratio and the corresponding 95% confidence intervals were calculated to quantify the risk. A p < 0.05 for two-tailed tests were considered significant. Result: The 90-day mortality rate was 0.08% (all males) and 3.95% of the patients experienced one or the other complications. The majority of patients reported excellent-to-poor scores at 90-day follow-up VAS (8.85 ± 1.02 vs. 2.65 ± 1.15; p < 0.0001) and KSS scores (42.96 ± 5.90 vs. 80.52 ± 4.15; p < 0.0001). The early readmission rate was 0.96%. Infection was being the primary reason. Age > 70 years; Deyo-Charlson co-morbidity score ≥ 4, ASA grade-III, Diabetes Mellitus, BMI > 35, Cardiac Issues and Male gender were significant predictors of early morbidity and mortality. Female, Deyo-Charlson comorbidity score ≥ 4, ASA grade-III, BMI > 35, Age > 75 years and poor preoperative scores were significantly associated with poor functional outcome. Conclusion: The present study explicates the relative importance of predictors on morbidity, mortality and functional outcome. Efforts to minimize morbidity and mortality should concentrate more on elderly male patients, and those with high Deyo-Charlson comorbidity score, BMI and ASA grade.

Amblyopia therapy in children with penetrating corneal injuries.

BACKGROUND: The role of part-time occlusion therapy in children with penetrating ocular injuries has not been studied. The aim of the study is to analyze the role of part-time occlusion therapy in children with penetrating ocular trauma following surgical intervention. MATERIALS AND METHODS: This is a retrospective case series with a median follow-up of 17 months (range: 3-105 months). The study was carried out at a tertiary referral center. Consecutive children with penetrating corneal tear injury who underwent surgical intervention were included in the study. These patients were subjected to part-time occlusion, and those with good compliance and follow-up were included in the study. The role of part-time occlusion therapy in children with ocular trauma is studied. RESULTS: There were 26 patients included in the study of which 23 were male and 3 were female, with a median age at presentation of 5 years (range: 1-11 years). The vision following surgical intervention at 6 weeks was 0.85 logMAR units (range: 0.3-2.8). Final median visual acuity was 0.48 logMAR units (range: 0-2). Paired t-test done for improvement in visual outcome before and after amblyopia therapy was statistically significant (P = 0.007). CONCLUSION: Amblyopia therapy shows promising results for patients following penetrating intraocular injury despite corneal scar in the visual axis in our group. A study on larger population is indicated.

Proximal fibular resection improves knee biomechanics and enhances tibial stress fracture healing in patients with osteoarthritis with varus deformity: a prospective, randomized control analysis.

BACKGROUND: The present study aimed to evaluate the functional outcome of single-stage total knee arthroplasty using long-stem tibial component with proximal fibular resection (PFR) for patients with knee osteoarthritis with varus deformity associated with tibial stress fracture. METHOD: A cohort of 62 patients with a mean age 71.63 ± 7.40 years who met the criteria were randomized to a study group and a control group. Patients in the study group underwent single-stage total knee arthroplasty using long-stem tibial component with PFR. The control group received conventional treatment. All patients were followed at 1, 3, 6 and 12 month(s) after surgery. Standard anteroposterior and lateral weight bearing knee X-rays were analyzed. Western Ontario and Mc-master Universities Osteoarthritis Index score (WOMAC) and the visual analog scale (VAS) score were used to assess the functional outcome. The level of significance was set at p < 0.05 levels. RESULTS: One patient in the study group was lost to follow-up, leaving 61 patients for final assessment. The WOMAC total score and mean VAS score were significantly better in study group than in control group at final follow-up (p < 0.05). All fractures were successfully united in a mean time of 12.26 ± 1.20 weeks in study group. A total of 16 patients in control group had delayed union, five had established nonunion and required further interventions. No complications relating to surgery was detected. CONCLUSION: Total knee arthroplasty with PFR for knee arthritis with varus deformity associated with tibial stress fractures restores limb alignment, improves biomechanics, enhances fracture healing and provides excellent functional outcome.

Screening of process variables to enhance the solubility of famotidine with 2-HydroxyPropyl-ß-Cyclodextrin & PVP K-30 by using Plackett-Burman design approach.

In the present work, inclusion complex of famotidine (FMT) was prepared with (2-HydroxyPropyl)-ß-Cyclodextrin (HP-ß-CyD) and polyvinylpyrrolidone K-30 (PVP K-30) by spray drying technique to enhance the solubility of famotidine. FMT is a potent histamine H2-receptor antagonist having low solubility as well as oral bioavailability. In order to enhance the solubility of FMT, a quality by design (QbD) approach has been used by employing Plackett-Burman design (PBD). With the application of PBD, seven independent process variables were investigated and optimized for maximum solubility. The developed inclusion complex was characterized for solubility, encapsulation efficiency, FTIR, FESEM, XRD. In-vitro drug release study was also performed by preparing fast dissolving tablets of inclusion complex. Solubility of FMT in prepared complex was found 38 fold higher than pure FMT while %EE was found 92.10%. Statistical analysis of the data (ANOVA) indicates an adequate model fitting predicting the effect of process parameters affecting the solubility. In conclusion, spray dried inclusion complex can effectively increases the solubility as well as dissolution rate of the FMT and other active pharmaceutical ingredients in combination of the fast dissolving tablets.