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1.
Colloids Surf B Biointerfaces ; 238: 113901, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38608466

RESUMO

Increased glycine concentrations are associated with altered metabolism of cancer cells and is reflected in the bodily fluids of the brain cancer patients. Various studies have been conducted in past to detect glycine as an imaging biomarker via NMR Spectroscopy tools. However, the use is limited because of the low concentration and different in vivo detection due to overlapping of peaks with myo-inositol in same spectral position. Alongside, little is known about the electrochemical potential of Glycine as a biomarker for brain cancer. The prime impetus of this study was to check the feasibility of glycine as non-invasive biomarker for brain cancer. A divergent approach to detect glycine "non-enzymatically" via unique chitosan lecithin nanocomposite has been utilised during this study. The electrochemical inactivity at provided potential that prevented glycine to get oxidized or reduced without mediator was compensated utilising the chitosan-lecithin nanocomposite. Thus, a redox mediator (Prussian blue) was used for high sensitivity and indirect detection of glycine. The chitosan nanoparticles-lecithin nanocomposite is used as a matrix. The electrochemical analysis of the onco-metabolomic biomarker (glycine) utilizing cyclic voltammetry in glycine spiked multi-Purpose artificial urine was performed to check distribution of glycine over physiological range of glycine. A wide linear range of response varying over the physiological range from 7 to 240 µM with a LOD 8.5 µM was obtained, showing potential of detection in biological samples. We have further evaluated our results via simulating the interaction of mediator and matrix with Glycine by HOMO-LUMO band fluctuations.


Assuntos
Técnicas Biossensoriais , Quitosana , Técnicas Eletroquímicas , Glicina , Lecitinas , Nanocompostos , Glicina/química , Quitosana/química , Nanocompostos/química , Técnicas Biossensoriais/métodos , Técnicas Eletroquímicas/métodos , Humanos , Lecitinas/química , Tamanho da Partícula
2.
Sensors (Basel) ; 24(4)2024 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-38400486

RESUMO

The Zero Trust safety architecture emerged as an intriguing approach for overcoming the shortcomings of standard network security solutions. This extensive survey study provides a meticulous explanation of the underlying principles of Zero Trust, as well as an assessment of the many strategies and possibilities for effective implementation. The survey begins by examining the role of authentication and access control within Zero Trust Architectures, and subsequently investigates innovative authentication, as well as access control solutions across different scenarios. It more deeply explores traditional techniques for encryption, micro-segmentation, and security automation, emphasizing their importance in achieving a secure Zero Trust environment. Zero Trust Architecture is explained in brief, along with the Taxonomy of Zero Trust Network Features. This review article provides useful insights into the Zero Trust paradigm, its approaches, problems, and future research objectives for scholars, practitioners, and policymakers. This survey contributes to the growth and implementation of secure network architectures in critical infrastructures by developing a deeper knowledge of Zero Trust.

3.
Biochimie ; 221: 110-124, 2024 Feb 03.
Artigo em Inglês | MEDLINE | ID: mdl-38311199

RESUMO

l-cysteine, a primary building block of mycothiol, plays an essential role in the defense mechanism of Mycobacterium tuberculosis (Mtb). However, it is unclear how Mtb regulates cysteine biosynthesis as no study has reported the cysteine regulatory complex (CRC) in Mtb. Serine acetyltransferase (SAT) and cysteine synthase (CS) interact to form CRC. Although MtCS has been characterized well, minimal information is available on MtSAT, which synthesizes, O-acetylserine (OAS), the precursor of cysteine. This study fills the gap and provides experimental evidence for the presence of MtCRC and a non-canonical multi-oligomeric MtSAT. We employed multiple analytical methods to characterize the oligomeric and kinetic properties of MtSAT and MtCRC. Results show that MtSAT, lacking >75 N-terminal amino acids exists in three different assembly states; trimer, hexamer, and dodecamer, compared to the single hexameric state of SAT of other bacteria. While hexamers display the highest catalytic turnover, the trimer is the least active. The predominance of trimers at low physiologically relevant concentrations suggests that MtSAT displays the lowest catalytic potential known. Further, the catalytic potential of MtSAT is also significantly reduced in CRC state, in contrast to enhanced activity of SAT in CRC of other organisms. Our study provides insights into multi-oligomeric MtSAT with reduced catalytic potential and demonstrates that both MtSAT and MtCS of Mycobacterium interact to form CRC, although with altered catalytic properties. We discuss our results in light of the altered biochemistry of the last step of canonical sulfate-dependent cysteine biosynthesis of Mycobacterium.

4.
Nutrition ; 118: 112262, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38029596

RESUMO

OBJECTIVES: Nutritional security for women working in agriculture is one of the most serious and persisting concerns in developing countries like India. The present study surveyed the dynamics of nutritional status based on dietary intake, namely calorie, carbohydrate, protein, fat, calcium, folic acid, iron, vitamin, carotene, etc., in the farm women in the central India state of Madhya Pradesh. METHODS: A total of 225 farm women (ages 18 to 60 y) who were engaged in agricultural activities were selected for this study. The nutritional survey was done by personal interview on food intake with a pretested interview schedule and daily dietary intake. The survey questionnaire includes information on family, socioeconomic status, income, education, occupation, and food habits of the farm women. As "daily dietary intake", respondents were asked to list all foods and beverages consumed for a whole day. RESULTS: The mean age, height, weight, and body mass index of the respondents were 34.93 y, 1519 mm, 49.47 kg, and 21.5 kg/m2, respectively. Based on different grades of nutrition, body mass index results indicated that 28% were underweight, 52.4% were normal, 17.8% were overweight, and 1.8% were obese. Inequality (estimated by Gini coefficient) analysis found that there is not much variation in the nutrient intake levels across the physical status of the respondents, with the exception of carotene and vitamin C. The classification and regression tree analysis indicated that with the exception of fat, the rest of the nutrients were not significant in determining the farm women's physical status in terms of weight. In the analysis of the waist-to-hip ratio, the risk of metabolic diseases (cardiovascular disease, diabetes, etc.) was higher in the 31- to 40-y age group. CONCLUSIONS: Overall food frequency indicated that poor intake of micronutrients in their diet according to their work activity results in poor health status. The study affirmed that the actual intake of nutrients varied significantly across the physical status of the farm women, their physical activities carried out, and their monthly income level. The study also suggests various policy options to overcome the nutritional gap in farm women.


Assuntos
Dieta , Estado Nutricional , Humanos , Feminino , Fazendas , Ingestão de Energia , Ingestão de Alimentos , Vitaminas , Carotenoides
5.
J R Coll Physicians Edinb ; 54(1): 7-13, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38112152

RESUMO

BACKGROUND: Dengue is a major international health concern prevalent in tropical and sub-tropical countries. There are a paucity of studies on the relationship of hepatic complications with inflammatory parameters in dengue infection. METHODS: Single-centre observational study was conducted at the tertiary care centre in North India. Patients (>12 years) diagnosed with dengue infection between August and November 2021 were enrolled in the study. The frequency of hepatic derangements and their associations with inflammatory severity was analysed. RESULTS: Based on the clinical symptoms, 170 patients were classified into three categories, namely, dengue fever, warning dengue and severe dengue. Higher incidence of liver dysfunction was observed in severe dengue patients with median values of aspartate aminotransferase (AST) (3051 U/L, p < 0.001), alanine aminotransferase (ALT) (1792 U/L, p = 0.009), alkaline phosphatase (172 U/L, p = 0.001), T.Bil (34.2 µmol/L, p < 0.001), albumin (30 g/L, <0.001), and gamma-glutamyl transferase (152 U/L, p < 0.001) along with inflammatory marker C-reactive protein (CRP) (43 mg/dL, p < 0.001) highly deranged, in comparison to patients with/without warning signs. Median levels of CRP were found to be positively and significantly correlated with the median levels of AST and ALT (p < 0.05, r = 0.99) in all three categories of dengue patients. Liver injury was noted in 107 (63%) of the cohort, and mixed type of liver injury involving both hepatocellular and cholestatic patterns was observed as the most common type of injury (n = 50, 29.4%). Liver injury correlated with the severity of dengue illness as about 85% of severe dengue patients had significant liver injury (p = 0.014). CONCLUSION: In dengue patients, the association of the liver injury with inflammatory severity suggests that the mechanism of liver injury may be related to inflammatory response apart from the hepatotropic nature of the virus.


Assuntos
Dengue , Dengue Grave , Humanos , Dengue Grave/complicações , Dengue Grave/diagnóstico , Dengue/complicações , Fígado , Testes de Função Hepática , Aspartato Aminotransferases , Proteína C-Reativa
6.
Leuk Res ; 134: 107392, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37774447

RESUMO

Acute Promyelocytic Leukemia (APL) is associated with excellent long-term outcomes. However, early mortality due to coagulopathy remains a challenge. In this study we examined the bleeding and thrombotic manifestations, as well as incidence of Early Death secondary to thrombosis/hemorrhage (ED-TH) in patients with APL. Early death (ED) was defined as death occurring within 30 days of induction therapy. Two-hundred forty-eight patients were included in the study. Overall, 57 patients had evidence of a major bleed/thrombosis at presentation or during induction therapy, including 44 patients with a major bleed, 8 patients with thrombosis and 5 patients with both evidence of thrombosis and a major bleed. Forty patients (16.1%) had ED, of which 21 had ED-TH. The cumulative incidence of death due to thrombo-hemorrhagic complications at 30 days was 8.4%. On univariate analysis, increasing Prothrombin time (PT)(p-<0.001), white blood cell count (p < 0.001) and activated Partial thromboplastin time (aPTT) (p < 0.001) were statistically significantly associated with increased risk of ED-TH. However, on multivariate analysis, only increasing PT (p-0.025) and aPTT (p-0.041) were significantly associated with increased risk of ED-TH.


Assuntos
Leucemia Promielocítica Aguda , Trombose , Humanos , Leucemia Promielocítica Aguda/complicações , Leucemia Promielocítica Aguda/tratamento farmacológico , Trióxido de Arsênio/efeitos adversos , Tretinoína , Hemorragia/induzido quimicamente , Hemorragia/complicações , Trombose/complicações , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos
7.
Environ Sci Pollut Res Int ; 30(45): 100301-100324, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37644275

RESUMO

For its promise in enhancing sustainability, the global value chain (GVC) has grown in relevance and sparked many studies. Due to different value activities in multiple countries and industry clusters, the competition and cooperation among value chains have attracted the considerable attention of business leaders and academicians worldwide. GVC-related sustainability research is a niche area despite its widespread presence in the literature. To bridge the gap, we use scientometric analysis in this paper, examining the corpus of 753 articles published in Web of Science journals from 2001 till 2021. This review illuminates the research performance constituents (e.g., most prolific authors, nations, institutions, and journals), the themes and issues that underpin the fields' intellectual structure, and transforming discoveries. GVC depends on nine basic clusters for sustainability research (i.e., global value chain participation, gendered global production network, repositioning organisational dynamics, labour stands, learning opportunities, Internet era). Future studies can be conducted to generate new knowledge across ten thematic (based on keywords) clusters (i.e., market liberalisation, trade pollution nexus, value chain dynamics, global value chain reconfiguration, non-governmental organisation, multipolar governance). A model that encompasses current knowledge of the global value chain for sustainability is developed, and avenues for future research are provided.


Assuntos
Comércio , Indústrias , Publicações , Poluição Ambiental
8.
Arch Microbiol ; 205(9): 323, 2023 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-37651004

RESUMO

In this research, we examined the microbial diversity in Sohna hot spring, Haryana, India using shotgun metagenome sequencing based on the Illumina Hiseq 4000 sequencing technology. The raw sequence data from metagenomic paired-end libraries were analysed for taxonomic classification, diversity, and functional annotation using MG-RAST online server. The results showed the presence of total of 57 phyla, 931 genera, and 2068 species, predominantly occupied by Moraxellaceae (Gammaproteobacteria). However, at the species level, we reported the presence of some representative pathogenic taxa, such as Acinetobacter baumannii and Moraxella osloensis. The functional annotation predicted at various levels based on SEED-based subsystem, KEGG ortholog identity (KO), Cluster of Orthologous Groups (COGs) database identified the predominance of genes associated with primary and secondary metabolism along with a crucial role in environmental and genetic signals, cellular communication, and cell signalling. Comparative Genome Analysis (CGA) using The Pathosystem Resource Integration Centre (PATRIC) tool based on genome annotation and assembly of the metagenomic libraries for representative taxon Acinetobacter baumannii (NCBI tax id:470) characterized the reads with a unique genome identifier of 470.20380 (A. baumannii DDLJ4) which is evolutionary closer to A. baumannii ATCC 470.17978 400667.7. In addition, the CARD database results about the presence of potential AMR pathotypes and the prevalence of adeABC, adeIJK, abeM gene-specific clusters that function as multidrug efflux pumps. Overall, the results provided a comprehensive insight into virulence and anti-microbial resistance mechanism and could be useful for developing potential drug targets against the possible AMR pathotypes.


Assuntos
Acinetobacter baumannii , Fontes Termais , Metagenômica , Índia , Acinetobacter baumannii/genética , Evolução Biológica
9.
Nanotechnology ; 34(35)2023 Jun 16.
Artigo em Inglês | MEDLINE | ID: mdl-37167957

RESUMO

Bio-nanotechnology is one of the new and sound techniques that have various advantages over conventional methods of wastewater treatment. The utilization of nanomaterials like nanoparticles for wastewater treatment is emerging field of research. Both physical and chemical methods can be used for nanoparticle synthesis, but synthesis based on algae (biological method) has numerous advantages over others as it is environmentally friendly and sustainable. Top-down and bottom-up are the two approaches used for nanoparticle synthesis, generally, bio-reduction (bottom-up approach) is used to synthesize nanoparticles. Nanoparticles can be synthesized inside the cell of algae called intracellular synthesis and outside on the surface of the cell called extracellular synthesis. Temperature, pH, and reaction time are some of the factors that can influence the synthesis, size, and properties of nanoparticles. Characterization of nanoparticles is carried out with the help of the techniques like UV-visible spectroscopy (UV-vis), x-ray diffraction, Fourier transfer infrared spectroscopy, etc. Algal nanoparticles are highly efficient in the remediation of contaminants like heavy metals and dyes from wastewater. In the present review, the utilization of algal nanoparticles for wastewater treatment containing contaminants like heavy metals, and dye, and various methods of synthesis of nanoparticles from algae are discussed. Moreover, the challenges and opportunities present in this field are also highlighted. As this field is in its initial stage, therefore, a lot of research gaps are present, which can only be filled by further new research.


Assuntos
Nanopartículas Metálicas , Metais Pesados , Nanopartículas , Nanoestruturas , Águas Residuárias , Nanopartículas/química , Nanotecnologia , Nanopartículas Metálicas/química
10.
Cancer Metastasis Rev ; 42(3): 847-889, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37204562

RESUMO

Cancer is one of the life-threatening diseases accountable for millions of demises globally. The inadequate effectiveness of the existing chemotherapy and its harmful effects has resulted in the necessity of developing innovative anticancer agents. Thiazolidin-4-one scaffold is among the most important chemical skeletons that illustrate anticancer activity. Thiazolidin-4-one derivatives have been the subject of extensive research and current scientific literature reveals that these compounds have shown significant anticancer activities. This manuscript is an earnest attempt to review novel thiazolidin-4-one derivatives demonstrating considerable potential as anticancer agents along with a brief discussion of medicinal chemistry-related aspects of these compounds and structural activity relationship studies in order to develop possible multi-target enzyme inhibitors. Most recently, various synthetic strategies have been developed by researchers to get various thiazolidin-4-one derivatives. In this review, the authors highlight the various synthetic, green, and nanomaterial-based synthesis routes of thiazolidin-4-ones as well as their role in anticancer activity by inhibition of various enzymes and cell lines. The detailed description of the existing modern standards in the field presented in this article may be interesting and beneficial to the scientists for further exploration of these heterocyclic compounds as possible anticancer agents.


Assuntos
Antineoplásicos , Neoplasias , Humanos , Neoplasias/tratamento farmacológico , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Antineoplásicos/química , Relação Estrutura-Atividade
11.
Water Environ Res ; 95(5): e10872, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37113106

RESUMO

In the present study, orange peel biochar has been utilized as the adsorbent for the removal of phenol from contaminated water. The biochar was prepared by thermal activation process at three different temperature 300, 500 and 700°C and are defined as B300, B500, and B700 respectively. The synthesized biochar has been characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transformation infrared spectroscopy (FTIR), RAMAN spectroscopy, X-ray photoelectron spectroscopy (XPS), and UV-Vis spectroscopy. SEM analysis revealed a highly irregular and porous structure for B700 as compared with others. The parameters such as initial phenol concentration, pH, adsorption dosage, and contact time were optimized, and the maximum adsorption efficiency and capacity of about 99.2% and 31.0 mg/g was achieved for B700 for phenol adsorption. The Branauer-Emmett-Teller (BET) surface area and Berrate-Joyner-Halenda (BJH) pore diameter obtained for B700 were about 67.5 m2 /g and 3.8 nm. The adsorption of phenol onto the biochar followed Langmuir isotherm showing linear fit with R2 = 0.99, indicating monolayer adsorption. The kinetic data for adsorption is best fitted for pseudo-second order. The thermodynamic parameters ΔG°, ΔH°, and ΔS° values obtained are negative, which means that the adsorption process is spontaneous and exothermic. The adsorption efficiency of phenol marginally declined from 99.2% to 50.12% after five consecutive reuse cycles. The study shows that the high-temperature activation increased the porosity and number of active sites over the orange peel biochar for efficient adsorption of phenol. PRACTITIONER POINTS: Orange peel is thermally activated at 300, 500, and 700°C for structure modification. Orange peel biochars were characterized for its structure, morphology, functional groups, and adsorption behavior. High-temperature activation improved the adsorption efficiency up to 99.21% due to high porosity.


Assuntos
Citrus sinensis , Poluentes Químicos da Água , Fenol/análise , Fenol/química , Água , Poluentes Químicos da Água/química , Termodinâmica , Espectroscopia de Infravermelho com Transformada de Fourier , Adsorção , Cinética , Concentração de Íons de Hidrogênio
12.
Am J Trop Med Hyg ; 108(3): 584-587, 2023 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-36535246

RESUMO

We update results from the Mycotic Infections in COVID-19 (MUNCO) Registry, May-September 2021. Data collection from May to September 2021 yielded 728 cases from India, Nepal, Bangladesh, Thailand, and the United States. The cases consisted of mostly mucormycosis (97.6%), primarily rhinocerebral, and were analyzed to investigate clinical characteristics associated with negative outcomes. Patients were mostly diabetic (85%) and male (76%), with significant mortality (11.7%). All patients received treatment of coronavirus disease 2019 (COVID-19) as well as antifungal treatment. The crude mortality rate was 11.3% for mucormycosis and 22.7% formixed infections. This study demonstrates the utility of online databases in the collection of high-caliber data.


Assuntos
COVID-19 , Diabetes Mellitus , Mucormicose , Humanos , Masculino , Mucormicose/tratamento farmacológico , COVID-19/complicações , Diabetes Mellitus/tratamento farmacológico , Antifúngicos/uso terapêutico , Sistema de Registros
13.
Br J Haematol ; 201(2): 249-255, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36529704

RESUMO

Arsenic trioxide (ATO) and all-trans retinoic acid (ATRA) form the backbone of the treatment of acute promyelocytic leukaemia (APL), with the addition of chemotherapy for high-risk patients. We describe our experience of treating patients with APL of all risk classes with ATO and ATRA without chemotherapeutic agents. Patients received induction with ATO and ATRA followed by three cycles of consolidation with ATO and ATRA (each 1 month apart) after achieving morphological remission. Patients with intermediate- and high-risk disease received a further 2 years of maintenance with ATRA, 6-mercaptopurine and methotrexate. A total of 206 patients were included in the study. The majority of the patients were intermediate risk (51.9%), followed by high risk (43.2%). Differentiation syndrome was seen in 41 patients (19.9%). Overall, 25 patients (12.1%) died within 7 days of initiating therapy. Seven patients relapsed during follow-up. The mean (SD) estimated 5-year event-free survival (EFS) and overall survival (OS) in the entire cohort was 79% [5.8%] and 80% [5.8%] respectively. After excluding patients who died within 7 days of therapy initiation, the mean (SD) estimated 5-year EFS and OS was 90% [5.8%] and 93% [3.9%] respectively. Our study shows that treatment of all risk classes of APL with ATO and ATRA without chemotherapy is associated with excellent long-term outcomes in the real-world setting.


Assuntos
Trióxido de Arsênio , Leucemia Promielocítica Aguda , Tretinoína , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Trióxido de Arsênio/uso terapêutico , Arsenicais/efeitos adversos , Óxidos/efeitos adversos , Estudos Retrospectivos , Resultado do Tratamento , Tretinoína/uso terapêutico
14.
Curr Drug Res Rev ; 15(2): 105-121, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36321239

RESUMO

Piperine is a fascinating substance since it can be used as a biomarker in combination with other bioactive compounds or their analogues, as well as therapeutic molecules used for the healing of a variety of diseases. It displays a plentiful therapeutic potential and various health benefits when administered alone or in combination with several other drugs and/or phytochemicals. It has also been used to enhance the pharmacokinetic profile of many nutraceutical compounds like curcumin, resveratrol, quercetin, beta-carotene, barbiturates, propranolol, metformin, theophylline etc. The present review discloses the synergistic effect of piperine and its derivatives, clinical studies, and patent studies of piperine.


Assuntos
Alcaloides , Humanos , Alcaloides/farmacologia , Alcamidas Poli-Insaturadas/farmacologia , Teofilina , Piperidinas/farmacologia
16.
J Indian Soc Periodontol ; 26(2): 137-142, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35321306

RESUMO

Context: Status of bone-implant interface or osseointegration can be assessed by using resonance frequency analysis (RFA), which measures implant stability. A modified implant surface can significantly enhance osseointegration and reduce healing period. Platelet-rich fibrin (PRF) consists of fibrin mesh with entrapped platelets and leukocytes that release a huge number of growth factors which contribute to wound healing and tissue regeneration. Aims: The present study aims to evaluate the effect of PRF on osseointegration in terms of implant stability. Settings and Design: This was a split-mouth randomized clinical trial. Materials and Methods: Sixty surgical sites were divided randomly into two groups. In Group 1 (thirty sites), PRF was placed in osteotomy sites before implant placement whereas no PRF was placed in Group 2 (thirty sites). Stability was measured using RFA in terms of implant stability quotient (ISQ) at baseline, 1 week, 1 month, and 3 months. Statistical Analysis: Intergroup comparison was done using Mann-Whitney U-test. Intragroup comparison was done using Friedman's test followed by pairwise comparison using Wilcoxon signed-rank test. Results: On intergroup comparison, Group 1 showed higher values for ISQ which were statistically significant (P < 0.05) at 1 week and 1 month. No significant difference (P > 0.05) was found at baseline and 3 months. Intragroup comparison and further pairwise comparison revealed a highly significant difference for values between all pairs of time intervals (P < 0.01) with higher values at 3 months. Conclusions: PRF has a significant effect on osseointegration of dental implants during the early healing period prior to loading.

17.
Postgrad Med J ; 98(1156): 91-97, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33184141

RESUMO

BACKGROUND: Characteristics of laboratory findings of COVID-19 patients are of great significance for diagnosis and treatment. Studies that have analysed the variations in hepatic profile in correlation with the inflammatory markers in SARS-CoV-2 are limited. METHODS: We retrospectively analysed liver function tests and inflammatory markers of 170 admitted patients with confirmed COVID-19 in the tertiary care centre, Post Graduate Institute of Medical Education and Research (PGIMER), India, using Roche Cobas Autoanalyzer. RESULTS: Number of patients with normal liver enzyme levels were 63 (41.5%), while with raised levels of any of the liver enzymes were 89 (58.5%), out of which 43 (48.31%) had liver injury which manifested as increased severity in terms of intensive care unit (ICU) requirement (p=0.0005). Significantly raised levels of liver enzymes and liver injury were observed with age (p<0.0001) and in males (p=0.004). Significantly decreased levels of albumin and total proteins and increased levels of total bilirubin (p<0.0001) were seen in patients with abnormal liver enzyme levels and liver injury as compared to patients with normal levels. Significant increase in the levels of alanine transaminase and gamma-glutamyl transferase was seen on the 7th day, CRP and ferritin (p<0.0001) peaks were observed on 2nd and 3rd day respectively. A significant positive correlation was found between the levels of these inflammatory markers and liver function parameters. CONCLUSIONS: More than half of patients admitted to the hospital with SARS-CoV-2 infection had an abnormal liver function which was found to be associated with raised levels of inflammatory markers. Significantly higher proportions of patients with abnormal liver function were elderly and males and were at higher risk of progressing to severe disease.


Assuntos
Biomarcadores/sangue , COVID-19/complicações , Hepatopatias/virologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Albuminas/análise , Bilirrubina/análise , Proteína C-Reativa/análise , COVID-19/diagnóstico , Teste de Ácido Nucleico para COVID-19 , Feminino , Ferritinas/sangue , Humanos , Hepatopatias/sangue , Testes de Função Hepática , Masculino , Pessoa de Meia-Idade , Pandemias , Estudos Retrospectivos , SARS-CoV-2
18.
Cancer Treat Res Commun ; 29: 100465, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34598060

RESUMO

The Theranostics approach has full potential to completely transform the contemporary medicine system to a patient-centric approach, as it is emerging in quite efficient manner, over the past few years. The primary impetus of this review is to analyse the patent growth in the domain of breast cancer theranostics. This wholesome analysis provides an insight into the current technological and R & D advancement over the years, in breast cancer theranostics. Thus, guide the end-users in getting the conclusion for policymaking and other public recommendations. This patent assessment also foretells about the future trends to carry out further achievements. Due to their easy availability, information richness, & versatility, patent's role in R&D policy has been emphasized by stake holders of innovation including scientists time to time. Graphical Abstract: The figure illustrates the applied technologies used for breast cancer theranostics by top three forward cited patents (A) The oligonucleotides with specific sequences (comprised of at least one of DNA, RNA, PNA. LNA, UNA or combination)1 are capable of binding a targeted tumor protein (PARP1, HISTIHIB, HISTIHID, NCL, FBL, SFPQ, RPL12, ACTB, HIST1H4A, SSBP1, NONO, H2AFJ, and DDX21, forming a tumor protein complex or subunit or their fragments and might block the tumoral activity. These are also capable of binding to Ramos cells (Derived from Human Burkitt's lymphoma that is negative for Epstein Barr virus). These can also bind cell surface nucleolin and may inhibit cell proliferation. These molecules with detection agent detect the presence or level of disease specific protein. (B) These aptamers with chemical functionalization can be conjugated to an amine linker or high molecular weight non-immunogenic compound or a drug or cytotoxic moiety or labelled with fluorescent agent. These chemically modified aptamers can also bind disease - specific biomarkers e.g., circulating biomarkers, micro- vesicle surface antigens or their functional fragments and can be subsequently used for early diagnosis, prognosis or therapeutic purposes. 1PNA: Peptide Nucleic Acid. LNA: Locked Nucleic Acid. UNA: Unlocked Nucleic Acid.


Assuntos
Neoplasias da Mama/terapia , Nanomedicina/métodos , Nanotecnologia/métodos , Medicina de Precisão/métodos , Feminino , Humanos
19.
J Mol Biol ; 433(22): 167255, 2021 11 05.
Artigo em Inglês | MEDLINE | ID: mdl-34547327

RESUMO

Cysteine Synthase (CS), the enzyme that synthesizes cysteine, performs non-canonical regulatory roles by binding and modulating functions of disparate proteins. Beyond its role in catalysis and regulation in the cysteine biosynthesis pathway, it exerts its moonlighting effect by binding to few other proteins which possess a C-terminal "CS-binding motif", ending with a terminal ILE. Therefore, we hypothesized that CS might regulate many other disparate proteins with the "CS-binding motif". In this study, we developed an iterative sequence matching method for mapping moonlighting biochemistry of CS and validated our prediction by analytical and structural approaches. Using a minimal protein-peptide interaction system, we show that five previously unknown CS-binder proteins that participate in diverse metabolic processes interact with CS in a species-specific manner. Furthermore, results show that signatures of protein-protein interactions, including thermodynamic, competitive-inhibition, and structural features, highly match the known CS-Binder, serine acetyltransferase (SAT). Together, the results presented in this study allow us to map the extreme multifunctional space (EMS) of CS and reveal the biochemistry of moonlighting space, a subset of EMS. We believe that the integrated computational and experimental workflow developed here could be further modified and extended to study protein-specific moonlighting properties of multifunctional proteins.


Assuntos
Biologia Computacional/métodos , Cisteína Sintase/química , Cisteína Sintase/metabolismo , Azorhizobium/genética , Sítios de Ligação , Cristalografia por Raios X , Cisteína Sintase/genética , Bases de Dados de Proteínas , Fluorescência , Haemophilus influenzae/enzimologia , Histonas/química , Histonas/metabolismo , Cinética , Modelos Moleculares , Planctomycetales/enzimologia , Regiões Promotoras Genéticas , Conformação Proteica , Mapas de Interação de Proteínas , Ribossomos/química , Ribossomos/metabolismo , Especificidade da Espécie , Fatores de Transcrição/química , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo
20.
Chemosphere ; 275: 129856, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33636519

RESUMO

With the increase in the world's population, demand for food and other products is continuously rising. This has put a lot of pressure on the agricultural sector. To fulfill these demands, the utilization of chemical fertilizers and pesticides has also increased. Consequently, to overcome the adverse effects of agrochemicals on our environment and health, there has been a shift towards organic fertilizers or other substitutes, which are ecofriendly and help to maintain a sustainable environment. Microalgae have a very high potential of carbon dioxide (CO2) capturing and thus, help in mitigating the greenhouse effect. It is the most productive biological system for generating biomass. The high growth rate and higher photosynthetic efficiency of the algal species compared to the terrestrial plants make them a wonderful alternative towards a sustainable environment. Moreover, they could be cultivated in photobioreactors or open ponds, which in turn reduce the demand for arable land. Biochar derived from algae is high in nutrients and exhibits the property of ion exchange. Therefore, it can be utilized for sustainable agriculture by partial substituting the chemical fertilizers that degrade the fertility of the soil in the long run. This review provides a detailed insight on the properties of algal biochar as a potential fertilizer for sustainable agriculture. Application of algal biochar in bio-refinery and its economic aspects, challenges faced and future perspective are also discusses in this study.


Assuntos
Gases de Efeito Estufa , Agricultura , Dióxido de Carbono/análise , Sequestro de Carbono , Carvão Vegetal , Fertilizantes , Solo
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