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Byline: Yongting. Lan, Yang. Yang, Abhijit. Das, Barshana. Bhattacharya, Souvik. Roy OBJECTIVES: Colon carcinoma stands as the most familiar malignancy throughout across the globe. Raptinal induce apoptosis through the alteration [...]

Herein, we present a dark-green crystalline tetranuclear Cu(II) Schiff base complex {C1 = [Cu4L4](ClO4)4(DMF)4(H2O)} using a N,N,O donor ligand (HL), namely 2-(((2-hydroxypropyl)imino)methyl)-6-methoxyphenol. Spectro-photometrical investigation on the β-lactamase-like activity of this coordinately saturated system revealed its catalytic inefficiency towards hydrolysis of nitrocefin as a model substrate. This complex has attracted significant interest as a promising photo-catalyst owing to its narrow band gap (2.40 eV) as predicted from DFT calculations and its higher responsivity towards UV light. Therefore, C1 is effectively involved in the photocatalytic reduction of perchlorate to Cl− in the presence of a hole scavenger (H2O–MeOH) under prolonged UV irradiation and itself becomes photo-cleaved to yield a new dark-brown colored chlorobridged dinuclear crystalline complex C2 {[CuL(H2O)2Cl3]H2O}. Furthermore, C2 was deployed as a functional β-lactamase model and was found to show a remarkable catalytic proficiency towards the hydrolysis of nitrocefin in 70 : 30 (V/V) MeOH–H2O medium. This pro-catalyst C2 has been speculated to generate an aqua bridged active catalyst that plays a crucial factor in hydrolysis. This phenomenon was again experimentally established by potentiometric pH titration where C2 displays only one pKa value (7.11) in the basic pH range, indicating the deprotonation of the bridged water molecule. Based on several other kinetic studies, it may be postulated that the hydrolysis of nitrocefin is initiated by the nucleophilic attack of a bridging hydroxide, followed by very fast protonation of the intermediate to furnish the hydrolyzed product. It is noteworthy that the rate of nitrocefin hydrolysis is greatly inhibited in the presence of external chloride concentration. To the best of our knowledge, this is the first report on the photochemical behavior of such a tetranuclear copper(II) Schiff base complex. Our current interest is focused on inventing a potent β-lactamase inhibitory therapeutic as well as elucidating its mechanism through comprehensive chemical analysis. [ABSTRACT FROM AUTHOR]

Domestic support reforms remain an unresolved and contentious issue in the WTO agricultural negotiations. There are proposals to halve the current global trade-distorting domestic support entitlements by 2030, where members would have to undertake reductions proportionate to their existing domestic support entitlements. This study critically examines the implications of the proportional reduction approach on the policy space of 164 WTO members to support their farmers. The results show that this approach fails to address the issues and concerns of developing members regarding domestic support reforms, and these members would be required to undertake higher reduction commitments than their developed counterparts. Additionally, the per-farmer entitlement for developed members would remain massive under this approach. Contrary to general belief, the least developed countries would lose half of their flexibility to support their farmers. Further, the proposed approach would dilute the existing special and differential treatment for developing, and least developed, members. [ABSTRACT FROM AUTHOR]

The carbon‐based nanostructures have led to the development of theranostic nanoplatforms for simultaneous diagnosis and therapy due to their effective cell membrane‐penetration ability, low degree of cytotoxicity, excellent pore volume, substantial chemical stability, and reactive surface. In the last few years, extensive efforts were made to design multifunctional nanoplatform strategies based on carbon nanostructures, involving multimodal imaging, controlled drug release capabilities, sensing in vitro, efficient drug loading capacity, and therapy. Carbon and graphene quantum dots (CQDs and GQDs) were the recent entrants, contingently being assessed for drug delivery and bioimaging. With the advancements, these quantum dots have ignited remarkable research interest and are now widely evaluated for diagnosis, bioimaging, sensing, and drug delivery applications. The last decade has witnessed their remarkable electrical, optical, and biocompatible properties since their inception. It is presumed that both of them have high potential as drug carriers and would serve as the next generation of approaches to address numerous unresolved therapeutic challenges. This review examined the recent advances of CQD and GQD based drug delivery applications, challenges, and future perspectives to pave the way for further studies in the future. [ABSTRACT FROM AUTHOR]

The Critically Endangered Cantor's giant softshell turtle Pelochelys cantorii is a freshwater turtle found in South and Southeast Asia. Its population is declining because of habitat destruction and alteration, and hunting for its meat. Data on the species' ecology, behaviour, population size, distribution and threats are limited, and previous surveys undertaken in India have failed to detect individuals in the wild. This lack of data hinders strategic conservation planning. Ecologists and conservationists increasingly utilize local ecological knowledge to determine the status and gain insights into the ecology of threatened and rare species that are difficult to detect in field studies. To examine the historical and current occurrence of Cantor's giant softshell turtle, we conducted community interviews along the Chandragiri River in Kerala, India. With data from these interviews, we identified multiple sites where the species continues to occur. Older respondents and those that used the river for fishing and irrigation were more likely to report sightings of the species. Our findings also improved knowledge about the turtles' seasonal and diel activity patterns. A network of key informants identified through the interviews provided information on turtle bycatch, sightings and nesting. This network is being utilized for the continued monitoring of the species and could help in devising evidence-based management strategies for softshell turtles in India. These methods can also be adopted more widely for other threatened species of freshwater turtles globally. [ABSTRACT FROM AUTHOR]

Background: Despite the unfavorable impact of frailty on the health of the elderly, research on frailty in Northeast India remains scarce. This study aimed to assess the prevalence of frailty among elderly inpatients and identify associated factors. Subjects and Methods: This cross-sectional study was conducted among 200 elderly (above 60 years of age) inpatients at a tertiary care hospital. A semistructured pro forma was used to collect data on sociodemographic details and other laboratory parameters. The Fried frailty phenotype was used to assess frailty. Quantitative data were presented as means ± standard deviation, whereas qualitative data were presented as frequency and percentages. The Chi-square/Fisher's exact test was applied to determine the association, and P < 0.05 was considered statistically significant. Results: The majority of the study participants were male, <70 years, and had a caretaker at home. The proportion of frail among the hospitalized elderly was 50% (95% confidence interval = 42.87%-57.13%). The rest 49.5% were categorized as robust and 0.5% were categorized as prefrail. Frailty was significantly associated with increased age, status of presence of caretaker, addiction, and higher body mass index. Comorbidities such as hypertension, chronic kidney disease, stroke, anemia, diabetes, chronic pulmonary disease, ischemic heart disease, and malignancy were also significantly associated. Conclusions: Frailty is a significant concern among hospitalized elderly individuals. Further research is needed to identify effective interventions to alleviate its impact. Community-level studies should elucidate the relationship between modifiable risk factors and frailty, aiming to enhance the quality of life for our aging population. [ABSTRACT FROM AUTHOR]