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1.
Surg Neurol Int ; 15: 240, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39108389

RESUMO

Background: The first-line surgical management of an adrenocorticotropic hormone (ACTH)--secreting pituitary adenoma causing Cushing's disease (CD) is endoscopic transsphenoidal resection of the tumor. This study was performed to assess postoperative (postop) complications and remission in endoscopic surgically resected cases of CD. Methods: Data of patients who underwent endoscopic transsphenoidal surgery (ETSS) for CD were collected from the neurosurgery department at a tertiary care center in a retrospective manner from January 2015 to February 2022 and analyzed. Postoperative remission was categorized as - early morning serum cortisol <138 nmol/L within 7 days of the surgery, as per the Endocrine Society Guidelines, with significant clinical improvement in features of hypercortisolism in the operated patient and strict cutoff rate of <50 nmol/L at postop day 3 was also utilized, to look for the early identification of remission. Results: A total of 41 patients were identified who underwent 44 ETSS during the same timeframe. Preoperative magnetic resonance imaging localized an adenoma in all 41 patients, out of which 32 were microadenoma, and nine were macroadenoma (2 with cavernous sinus invasion). Intrapetrosal sinus sampling was performed in 35 (85%) patients. The rate of remission for the initial surgery was 85.4% using the standard criteria and 68.3% using strict criteria. Three patients underwent early repeat surgery for the persistent disease as the day 3 cortisol was high (306-555 nmol/L). Once the outcome of this surgery was also included, the overall rate of remission was 90.2% (37/41). None of the patients had meningitis, cerebrospinal fluid leakage, visual deterioration, or vascular injury. Permanent and transient diabetes insipidus (DI) occurred in 9.75% and 26.8% following the first ETSS, respectively. We also noted a single case of CD recurrence in 9 months during the total follow-up period of 84 months. Conclusion: ETSS has satisfactory rates of remission for the primary treatment of CD, with rates being higher for microadenomas. A long follow-up period is needed to assess the rates of recurrence. Patients must be counseled regarding the risk of postop DI, whether transient or permanent, as a possible complication.

2.
Childs Nerv Syst ; 2024 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-39090475

RESUMO

BACKGROUND: Cerebral aneurysms in children have a low incidence and accounts for less than 4% of all cerebral aneurysms. These aneurysms have been linked to various factors. Severe headache, seizures, and motor-sensory deficits are common presentations. CASE REPORT: We describe the case of a 2-month-old male patient who presented with generalized tonic-clonic seizures for 4 days. At the hospital, he was stabilized with ventilatory support, sedation, and antiepileptic drugs. A NCCT (Head) showed intraparenchymal hemorrhage in the left fronto-parieto-temporal lobe and subarachnoid hemorrhage. Subsequently a CT angiogram revealed an aneurysm of the left M3 segment of MCA. Successfully, the patient underwent microsurgical clipping of aneurysm and evacuation of hematoma. CONCLUSIONS: Pediatric cerebral aneurysms differ from their adult counterparts, mainly in their etiology and evolution. As per literature, aneurysmal clipping and neurological endovascular therapy have shown similar results.

3.
Bioresour Technol ; 408: 131211, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39102966

RESUMO

Biosurfactants are surface-active compounds produced by numerous microorganisms. They have gained significant attention due to their wide applications in food, pharmaceuticals, cosmetics, agriculture, and environmental remediation. The production efficiency and yield of microbial biosurfactants have improved significantly through the development and optimization of different process parameters. This review aims to provide an in-depth analysis of recent trends and developments in microbial biosurfactant production strategies, including submerged, solid-state, and co-culture fermentation. Additionally, review discusses biosurfactants' applications, challenges, and future perspectives. It highlights their advantages over chemical surfactants, emphasizing their biodegradability, low toxicity, and diverse chemical structures. However, the critical challenges in commercializing include high production costs and low yield. Strategies like genetic engineering, process optimization, and downstream processing, have been employed to address these challenges. The review provides insights into current commercial producers and highlights future perspectives such as novel bioprocesses, efficient microbial strains, and exploring their applications in emerging industries.


Assuntos
Tensoativos , Tensoativos/química , Tensoativos/metabolismo , Fermentação , Bactérias/metabolismo , Biotecnologia/métodos , Biodegradação Ambiental
4.
Surg Neurol Int ; 15: 114, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38742010

RESUMO

Background: Intradural extramedullary (IDEM) spinal cord tumors account for approximately two-thirds of benign intraspinal neoplasms. These are amenable to gross total excision but can have variable functional outcomes, which plays a key role in assessing their impact on a patient's quality of life. Understanding the functional outcomes associated with these tumors is crucial for healthcare professionals to devise appropriate treatment plans and provide comprehensive care. Methods: In this study, we retrospectively reviewed the outcomes of 130 patients with IDEM tumors who underwent surgery in the past six years between January 2017 and December 2022 at a single institution. Patient demographics, symptoms, and tumor characteristics (anatomical and pathological) in all operated spinal IDEM tumors were analyzed. The neurological findings obtained during the preoperative stage and the postoperative follow-up were evaluated according to the Frankel grading. The back pain was assessed using the Denis pain scale (DPS). Results: The age range, gender distribution, presentation, histopathology, and tumor characteristics were analyzed. The histopathological outcomes of the study were as follows: 56 cases of schwannoma, 37 cases of meningiomas, 16 patients of neurofibroma, six cases of epidermoid cyst, five cases each of ependymoma and dermoid cyst, three cases of arachnoid cyst, two cases of metastasis, and one case of paraganglioma. Pain was the most common symptom (38.5%), followed by weakness in limbs (31.5%), paresthesia/numbness (22.3%), and sphincter disturbance (7.7%). Complete total resection was seen in 93% of cases, with 7% undergoing subtotal excision. The complications encountered were - four cases of surgical site infection and one case each of cerebrospinal fluid leak, pseudomeningocele, and epidural hematoma. In our series, 49.3% of patients had significantly good improvement in functional outcomes as per improvement in Frankel score, and 43% of patients had good functional improvement. Significant functional improvement was noted at immediate postoperative follow-up, 2-week follow-up, and six-month follow-up periods. Reoccurrence was seen in 7 cases (5.4%). The DPS score mean values showed a significant decrease over the follow-up duration as compared to preoperative mean values. Significantly poor outcome was seen in IDEM tumours present anteriorly. Conclusion: The IDEM tumors are usually benign and are readily detected by contrast-enhanced magnetic resonance imaging scans. These have variable functional outcomes in different centers. Assessing this functional outcome is an essential aspect of managing IDEM spinal tumors. It was observed through our study that the ventral location of the tumor, thoracic tumors, and poor preoperative neurological status of the patient correspond with poorer postoperative functional outcomes. Furthermore, a significant decrease in the pain symptoms with improvement of Frankel score was seen postoperatively, thus this being suggestive of a significant improvement of functional outcome after surgery. This study helps to conclude that the morbidity associated with the resection of IDEM tumors is not as significant as originally thought to be.

5.
Int J Biol Macromol ; 268(Pt 2): 131817, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38670182

RESUMO

The bZIP transcription factors play crucial roles in various aspects of plant biology, including development, defence mechanisms, senescence, and responses to both biotic and abiotic environmental stresses. Myristica fragrans Houtt. transcriptome analysis has identified 15 bZIP transcription factors, each exhibiting major conserved domains and motifs such as BRLZ, MFMR, and DOG1. Functional characterisation of these identified MfbZIP factors indicates their predominant localisation within the nucleus. Phylogenetic analysis reveals that MfbZIP factors cluster into three subgroups alongside annotated bZIP sequences from Magnolia sinica and Arabidopsis thaliana. Moreover, gene ontology (GO) analysis highlights several key functions of MfbZIP, including involvement in defence responses, abscisic acid-induced signalling pathways, and DNA-binding transcription factor activity. Further investigation through KEGG pathway analysis reveals that the amino acid sequences of MfbZIP contain binding motifs for proteins such as TGA, implicated in plant hormone signal transduction pathways associated with disease resistance. To confirm the disease-defence-related activity of the TGA binding protein within MfbZIP, we employed amino acid sequences for 3-D ab initio modelling. Subsequently, we analysed TGA-NPR1 interactions using docking and molecular dynamics simulation analysis. These analyses shed light on the functional and structural aspects of TGA, demonstrating its stable association with NPR1 protein and its significance in the expression of PR1 protein, thus playing a pivotal role in defence responses against pathogens.


Assuntos
Fatores de Transcrição de Zíper de Leucina Básica , Resistência à Doença , Regulação da Expressão Gênica de Plantas , Filogenia , Doenças das Plantas , Proteínas de Plantas , Transcriptoma , Fatores de Transcrição de Zíper de Leucina Básica/genética , Fatores de Transcrição de Zíper de Leucina Básica/metabolismo , Fatores de Transcrição de Zíper de Leucina Básica/química , Resistência à Doença/genética , Doenças das Plantas/genética , Proteínas de Plantas/genética , Proteínas de Plantas/química , Proteínas de Plantas/metabolismo , Sequência de Aminoácidos , Perfilação da Expressão Gênica , Arabidopsis/genética
6.
Phys Rev Lett ; 131(23): 233802, 2023 Dec 08.
Artigo em Inglês | MEDLINE | ID: mdl-38134774

RESUMO

We develop a general nonperturbative formalism and propose a specific scheme for maximally efficient generation of biphoton states by parametric decay of single photons. We show that the well-known critical coupling concept of integrated optics can be generalized to the nonlinear coupling of quantized photon modes to describe the nonperturbative optimal regime of a single-photon nonlinearity and establish a fundamental upper limit on the nonlinear generation efficiency of quantum-correlated photons, which approaches unity for low enough absorption losses.

7.
J Biomol Struct Dyn ; : 1-15, 2023 Oct 26.
Artigo em Inglês | MEDLINE | ID: mdl-37885259

RESUMO

The three primary enzymes COX (cyclooxygenase), LOX (lipoxygenase) and CYT-P450 (cytochrome P450), which are part of the arachidonic inflammatory pathway, play crucial role in the development of asthma, rheumatoid arthritis and cardiovascular diseases. Ethnomedicinally, plant-derived chemicals have a major role in the treatment of fatal illnesses. Aquilaria malaccensis Lam. widely known as agarwood is prized for its fragrance and therapeutic properties. The phytochemicals and extracts of this plant have significant healing properties in the treatment of serious illnesses. In the current work, an in-silico approach including molecular docking, ADMET (absorption, distribution, metabolism, excretion and toxicity), molecular dynamics (MD) simulation and molecular mechanics/Poisson-Boltzmann surface area (MM-PBSA) was performed to screen 33 bioactive compounds from this plant against COX-2 and 5-LOX in order to find the most effective inhibitor. 2-(2-Phenylethyl)chromone was found to inhibit both 5-LOX and COX-2, showing the highest binding affinities (-9.1 kcal/mol and -9.0 kcal/mol, respectively) than standard Ibuprofen and nordihydroguaiaretic acid (NDGA). 2-(2-Phenylethyl)chromone showed the highest drug-likeness score and low risk of toxicity compared to other phytochemicals. MD modeling and MM-PBSA calculations showed that 2-(2-Phenylethyl)chromone had a strong persistent binding interaction with 5-LOX than COX-2, and this interaction is comparable to the bounded standards Ibuprofen and NDGA. From this study, we may infer that the 2-(2-Phenylethyl)chromone can serve as a potent inhibitor and has scope to be employed in the treatment of inflammatory ailments.Communicated by Ramaswamy H. Sarma.

8.
Phytochemistry ; 202: 113296, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35868566

RESUMO

Plant secretomics has been especially important in understanding the molecular basis of plant development, stress resistance and biomarker discovery. In addition to sharing a similar role in maintaining cell metabolism and biogenesis with the animal secretome, plant-secreted proteins actively participate in signaling events crucial for cellular homeostasis during stress adaptation. However, investigation of the plant secretome remains largely overlooked, particularly in pulse crops, demanding urgent attention. To better understand the complexity of the secretome, we developed a reference map of a stress-resilient orphan legume, Lathyrus sativus (grasspea), which can be utilized as a potential proteomic resource. Secretome analysis of L. sativus led to the identification of 741 nonredundant proteins belonging to a myriad of functional classes, including antimicrobial, antioxidative and redox potential. Computational prediction of the secretome revealed that ∼29% of constituents are predicted to follow unconventional protein secretion (UPS) routes. We conducted additional in planta analysis to determine the localization of two secreted proteins, recognized as cell surface residents. Sequence-based homology comparison revealed that L. sativus shares ∼40% of the constituents reported thus far from in vitro and in planta secretome analysis in model and crop species. Significantly, we identified 571 unique proteins secreted from L. sativus involved in cell-to-cell communication, organ development, kinase-mediated signaling, and stress perception, among other critical roles. Conclusively, the grasspea secretome participates in putative crosstalk between genetic circuits that regulate developmental processes and stress resilience.


Assuntos
Fabaceae , Lathyrus , Produtos Agrícolas/metabolismo , Grão Comestível/metabolismo , Lathyrus/genética , Lathyrus/metabolismo , Desenvolvimento Vegetal , Proteínas de Plantas/metabolismo , Proteômica , Secretoma , Verduras/metabolismo
9.
Plant Sci ; 316: 111161, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35151446

RESUMO

The plant exoproteome is crucial because its constituents greatly influence plant phenotype by regulating physiological characteristics to adapt to environmental stresses. The root exudates constitute a dynamic aspect of plant exoproteome, as its molecular composition ensures a beneficial rhizosphere in a species-specific manner. We investigated the root exoproteome of grasspea, a stress-resilient pulse and identified 2861 non-redundant proteins, belonging to a myriad of functional classes, including root development, rhizosphere augmentation as well as defense functions against soil-borne pathogens. Significantly, we identified 1986 novel exoproteome constituents of grasspea, potentially involved in cell-to-cell communication and root meristem maintenance, among other critical roles. Sequence-based comparison revealed that grasspea shares less than 30 % of its exoproteome with the reports so far from model plants as well as crop species. Further, the exoproteome revealed 65 % proteins to be extracellular in nature and of these, 37 % constituents were predicted to follow unconventional protein secretion (UPS) mode. We validated the UPS for four stress-responsive proteins, which were otherwise predicted to follow classical protein secretion (CPS). Conclusively, we recognized not only the highest number of root exudate proteins, but also pinpointed novel signatures of dicot root exoproteome.


Assuntos
Lathyrus , Raízes de Plantas , Plantas , Rizosfera , Estresse Fisiológico
10.
Sci Rep ; 10(1): 7365, 2020 04 30.
Artigo em Inglês | MEDLINE | ID: mdl-32355279

RESUMO

Early detection and easier follow-up of oral squamous cell carcinoma (OSCC) would significantly improve the morbidity and mortality associated with it. With newer technologies, it has become possible to validate cancer biomarkers in saliva with high sensitivity and specificity. There is however a need to further validate these biomarkers in cohorts of different ethnic groups. Our objective was to validate previously evaluated salivary biomarkers in Indian population. The study enrolled 117 patients. These were grouped into subcatergories of 31 early (TNMstage I-II) and 27 late-stage OSCC (TNM stage III-IV), 30 PMOD and 29 post-treatment patients. There were 42 control subjects. We evaluated 3 protein markers, IL-1ß, IL-8 and LGALS3BP using ELISA, from unstimulated saliva samples. Statistical analysis was done to calculate p-value, ROC, AUC, sensitivity, and specificity. Protein markers IL-1ß and IL-8 were significantly elevated (p < 0.05) in OSCC patients. Though the markers could not discriminate PMOD and post-treatment subjects from controls, they proved to be significantly discriminatory between OSCC and controls. Both these markers were especially strong discriminators of late stage OSCC (stage III-IV). IL-1ß had the most statistically significant discriminative power (AUC = 0.9017) in late-stage OSCC followed by IL-8 (AUC = 0.7619). Although LGALS3BP was not found to be significantly elevated in late stage OSCC patients, but it was a significant discriminator of early stage OSCC (stage I-II) with p-value = 0.0008 and AUC = 0.7296. These salivary biomarkers have been discovered and validated in other ethnic groups earlier. Hence, the fact that these markers were discriminatory in Indian population too, strengthens the possibility of using these salivary biomarkers as screening tools in different ethnic cohorts. Such trials would potentiate use of a non-invasive tool, like saliva for diagnosis and follow-up of oral cancer.


Assuntos
Antígenos de Neoplasias/metabolismo , Biomarcadores Tumorais/metabolismo , Carcinoma de Células Escamosas/metabolismo , Interleucina-1beta/metabolismo , Interleucina-8/metabolismo , Neoplasias Bucais/metabolismo , Saliva/metabolismo , Carcinoma de Células Escamosas/diagnóstico , Ensaio de Imunoadsorção Enzimática , Humanos , Neoplasias Bucais/diagnóstico
11.
Genes (Basel) ; 9(4)2018 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-29597290

RESUMO

Architectural proteins play key roles in genome construction and regulate the expression of many genes, albeit the modulation of genome plasticity by these proteins is largely unknown. A critical screening of the architectural proteins in five crop species, viz., Oryza sativa, Zea mays, Sorghum bicolor, Cicer arietinum, and Vitis vinifera, and in the model plant Arabidopsis thaliana along with evolutionary relevant species such as Chlamydomonas reinhardtii, Physcomitrella patens, and Amborella trichopoda, revealed 9, 20, 10, 7, 7, 6, 1, 4, and 4 Alba (acetylation lowers binding affinity) genes, respectively. A phylogenetic analysis of the genes and of their counterparts in other plant species indicated evolutionary conservation and diversification. In each group, the structural components of the genes and motifs showed significant conservation. The chromosomal location of the Alba genes of rice (OsAlba), showed an unequal distribution on 8 of its 12 chromosomes. The expression profiles of the OsAlba genes indicated a distinct tissue-specific expression in the seedling, vegetative, and reproductive stages. The quantitative real-time PCR (qRT-PCR) analysis of the OsAlba genes confirmed their stress-inducible expression under multivariate environmental conditions and phytohormone treatments. The evaluation of the regulatory elements in 68 Alba genes from the 9 species studied led to the identification of conserved motifs and overlapping microRNA (miRNA) target sites, suggesting the conservation of their function in related proteins and a divergence in their biological roles across species. The 3D structure and the prediction of putative ligands and their binding sites for OsAlba proteins offered a key insight into the structure-function relationship. These results provide a comprehensive overview of the subtle genetic diversification of the OsAlba genes, which will help in elucidating their functional role in plants.

12.
Indian J Psychol Med ; 38(1): 65-6, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27011406

RESUMO

Childhood disintegrative disorder (CDD) is characterized by late onset (>3 years of age) of developmental delays in language, social function and motor skills. Commonly there is no antecedent physical disorder leading to childhood disintegrative disorder. The present case report describes a child who developed childhood disintegrative disorder at the age of 6 years after an episode of chicken pox.

13.
J Pharmacol Pharmacother ; 6(4): 214-5, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26816474

RESUMO

Antidepressant withdrawal mania is not a commonly reported occurrence. To date, there is only one published report of hypomanic episode on withdrawal of mirtazapine. A case is presented herein of a patient who experienced manic episode on withdrawal of mirtazapine.

14.
Phytochemistry ; 100: 16-25, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24534105

RESUMO

Alba proteins have exhibited great functional plasticity through the course of evolution and constitute a superfamily that spans across three domains of life. Earlier, we had developed the dehydration-responsive nuclear proteome of an indica rice cultivar, screening of which led to the identification of an Alba protein. Here we describe, for the first time, the complete sequence of the candidate gene OsAlba1, its genomic organization, and possible function/s in plant. Phylogenetic analysis showed its close proximity to other monocots as compared to dicot Alba proteins. Protein-DNA interaction prediction indicates a DNA-binding property for OsAlba1. Confocal microscopy showed the localization of OsAlba1-GFP fusion protein to the nucleus, and also sparsely to the cytoplasm. Water-deficit conditions triggered OsAlba1 expression suggesting its function in dehydration stress, possibly through an ABA-dependent pathway. Functional complementation of the yeast mutant ΔPop6 established that OsAlba1 also functions in oxidative stress tolerance. The preferential expression of OsAlba1 in the flag leaves implies its role in grain filling. Our findings suggest that the Alba components such as OsAlba1, especially from a plant where there is no evidence for a major chromosomal role, might play important function in stress adaptation.


Assuntos
Adaptação Fisiológica , Proteínas Nucleares/metabolismo , Oryza/fisiologia , Proteínas de Plantas/metabolismo , Estresse Fisiológico , Água/metabolismo , Transporte Ativo do Núcleo Celular , Sequência de Aminoácidos , Sequência de Bases , Núcleo Celular/metabolismo , Clonagem Molecular , Citoplasma/metabolismo , Evolução Molecular , Regulação da Expressão Gênica de Plantas , Modelos Moleculares , Dados de Sequência Molecular , Proteínas Nucleares/química , Proteínas Nucleares/genética , Oryza/citologia , Oryza/genética , Oryza/metabolismo , Filogenia , Proteínas de Plantas/química , Proteínas de Plantas/genética , Multimerização Proteica , Estrutura Quaternária de Proteína
15.
Proteomics ; 13(23-24): 3478-97, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24133045

RESUMO

Dehydration is the most crucial environmental factor that considerably reduces the crop harvest index, and thus has become a concern for global agriculture. To better understand the role of nuclear proteins in water-deficit condition, a nuclear proteome was developed from a dehydration-sensitive rice cultivar IR-64 followed by its comparison with that of a dehydration-tolerant c.v. Rasi. The 2DE protein profiling of c.v. IR-64 coupled with MS/MS analysis led to the identification of 93 dehydration-responsive proteins (DRPs). Among those identified proteins, 78 were predicted to be destined to the nucleus, accounting for more than 80% of the dataset. While the detected number of protein spots in c.v. IR-64 was higher when compared with that of Rasi, the number of DRPs was found to be less. Fifty-seven percent of the DRPs were found to be common to both sensitive and tolerant cultivars, indicating significant differences between the two nuclear proteomes. Further, we constructed a functional association network of the DRPs of c.v. IR-64, which suggests that a significant number of the proteins are capable of interacting with each other. The combination of nuclear proteome and interactome analyses would elucidate stress-responsive signaling and the molecular basis of dehydration tolerance in plants.


Assuntos
Núcleo Celular/fisiologia , Oryza/metabolismo , Proteínas de Plantas/metabolismo , Adaptação Fisiológica , Forma do Núcleo Celular , Desidratação , Genótipo , Redes e Vias Metabólicas , Anotação de Sequência Molecular , Proteínas Nucleares/metabolismo , Oryza/citologia , Oryza/genética , Proteômica
16.
J Health Hum Serv Adm ; 36(1): 3-23, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24010261

RESUMO

Financial crunch in the present recession results in the non-availability of the right materials at the right time in large hospitals. However due to insufficient impetus towards systems development, situation remains dismal even when funds are galore. Cost incurred on materials account for approximately one-third of the total recurring expenditures in hospitals. Systems development for effective and efficient materials management is thus tantamount to cost-containment and sustainability. This scientific paper describes an innovative model, Hospital Revolving Fund (HRF), developed at a tertiary care research institute in Asia. The main idea behind inception of HRF was to ensure availability of all supplies in the hospital so that the quality of healthcare delivery was not affected. The model was conceptualized in the background of non-availability of consumables in the hospital leading to patient as well as staff dissatisfaction. Hospital supplies have been divided into two parts, approximately 3250 unit items and 1750 miscellaneous items. This division is based on cost, relative-utility and case-specific utilization. 0.1 Million USD, separated from non-planned budget, was initially used as seed money in 1998. HRF procures supplies from reputed firms on concessional rates (8-25%) and make them available to patients at much lesser rates vis-à-vis market rates, levying minimal maintenance charges. In 2009-10, total annual purchases of 14 Million USD were made. The balance sheet reflected 1.4 Million USD as fixed deposit investment. The minimal maintenance charges levied on the patients along with the interest income were sufficient to pay for all recurring expenses related to HRF. Even after these expenses, HRF boosted of 0.2 Million USD as cash-in-hand in financial year 2009-10. In-depth analysis of 'balance sheet' and 'Income and Expenditure' statement of the fund for last five financial years affirms that HRF is a self-sustainable and viable supply chain mechanism to ensure availability of the right materials at the right time at a reasonable cost. Thus innovations like HRF will prove robust in rendering quality healthcare at an affordable cost.


Assuntos
Administração de Materiais no Hospital/organização & administração , Centros de Atenção Terciária/economia , Controle de Custos , Eficiência Organizacional/economia , Equipamentos e Provisões Hospitalares/economia , Índia , Administração de Materiais no Hospital/economia , Estudos Retrospectivos
17.
Mol Genet Metab ; 110(3): 362-70, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23911207

RESUMO

N-(3-oxododecanoyl)-l-homoserine lactone (3OC(12)-HSL) is a quorum-sensing molecule produced by gram-negative microbial pathogens such as Pseudomonas aeruginosa (PAO1). 3OC(12)-HSL is involved in the regulation of bacterial virulence factors and also alters the function of the host immune cells. Others and we have previously shown that paraoxonase 2 (PON2), a member of the paraoxonase gene family expressed in immune cells, hydrolyzes 3OC(12)-HSL. In this study, we examined i) whether macrophage PON2 participates in 3OC(12)-HSL hydrolysis, ii) the effect of PON2 deficiency in acute PAO1 infection in mice and iii) the effect of 3OC(12)-HSL on PON2 deficient (PON2-def) macrophages. When compared to wild type macrophages, both intact cells and membrane-enriched protein lysates obtained from PON2-def macrophages show a marked impairment in their ability to hydrolyze 3OC(12)-HSL. PON2 expression (message and protein) is not altered in response to 3OC(12)-HSL in macrophages. 3OC(12)-HSL treated PON2-def macrophages showed i) an increase in ER stress and oxidative stress, ii) defective phosphatidylinositol 3-kinase (PI3 kinase)/AKT activation, and iii) reduced phagocytosis function. Moreover, the nitration to phosphorylation ratio of Tyr458 in p85 protein, the regulatory subunit of PI3-kinase that has been correlated with the phagocytosis function of macrophages, was increased in PON2-def macrophages. Antioxidant treatment reversed the effects of PON2 deficiency in macrophage phagocytosis function. Furthermore, following administration of 1.6 × 10(7) CFU of PAO1, bacterial clearance was significantly reduced in the lungs (5.7 fold), liver (2.5 fold), and spleen (14.8 fold) of PON2-def mice when compared to wild type mice. Our results suggest that PON2 plays an important role in innate immune defense against PAO1 infection.


Assuntos
Arildialquilfosfatase/genética , Imunidade Inata/genética , Infecções por Pseudomonas/genética , Infecções por Pseudomonas/imunologia , Pseudomonas aeruginosa/imunologia , 4-Butirolactona/análogos & derivados , 4-Butirolactona/farmacologia , Animais , Antioxidantes/farmacologia , Homosserina/análogos & derivados , Homosserina/farmacologia , Mediadores da Inflamação/metabolismo , Macrófagos/efeitos dos fármacos , Macrófagos/imunologia , Macrófagos/microbiologia , Masculino , Camundongos , Camundongos Knockout , Estresse Oxidativo , Fagocitose/efeitos dos fármacos , Fagocitose/genética , Fagocitose/imunologia , Percepção de Quorum/imunologia , Espécies Reativas de Oxigênio
18.
J Pediatr Neurosci ; 5(1): 72-5, 2010 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21042516

RESUMO

Mutations in different types of fibroblastic growth factor receptors (FGFRs) have been associated with a variety of phenotype abnormalities, the common ones being Apert, Crouzon and Pfeiffer syndromes. In this study, we present two representative cases having the Apert and Pfeiffer syndromes, respectively, and discuss their clinical presentation, sequel and surgical implications.

19.
J Proteome Res ; 9(7): 3443-64, 2010 Jul 02.
Artigo em Inglês | MEDLINE | ID: mdl-20433195

RESUMO

Water-deficit or dehydration impairs almost all physiological processes and greatly influences the geographical distribution of many crop species. It has been postulated that higher plants rely mostly on induction mechanisms to maintain cellular integrity during stress conditions. Plant cell wall or extracellular matrix (ECM) forms an important conduit for signal transduction between the apoplast and symplast and acts as front-line defense, thereby playing a key role in cell fate decision under various stress conditions. To better understand the molecular mechanism of dehydration response in plants, four-week-old rice seedlings were subjected to progressive dehydration by withdrawing water and the changes in the ECM proteome were examined using two-dimensional gel electrophoresis. Dehydration-responsive temporal changes revealed 192 proteins that change their intensities by more than 2.5-fold, at one or more time points during dehydration. The proteomic analysis led to the identification of about 100 differentially regulated proteins presumably involved in a variety of functions, including carbohydrate metabolism, cell defense and rescue, cell wall modification, cell signaling and molecular chaperones, among others. The differential rice proteome was compared with the dehydration-responsive proteome data of chickpea and maize. The results revealed an evolutionary divergence in the dehydration response as well as organ specificity, with few conserved proteins. The differential expression of the candidate proteins, in conjunction with previously reported results, may provide new insight into the underlying mechanisms of the dehydration response in plants. This may also facilitate the targeted alteration of metabolic routes in the cell wall for agricultural and industrial exploitation.


Assuntos
Desidratação/metabolismo , Proteínas da Matriz Extracelular/metabolismo , Oryza/fisiologia , Proteínas de Plantas , Proteômica/métodos , Western Blotting , Análise por Conglomerados , Simulação por Computador , Eletroforese em Gel Bidimensional , Proteínas de Plantas/classificação , Proteínas de Plantas/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Reprodutibilidade dos Testes , Transdução de Sinais , Estresse Fisiológico/fisiologia
20.
Int J Antimicrob Agents ; 32(2): 180-5, 2008 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-18571386

RESUMO

A polyherbal cream (Basant) has been formulated using diferuloylmethane (curcumin), purified extracts of Emblica officinalis (Amla), purified saponins from Sapindus mukorossi, Aloe vera and rose water along with pharmacopoeially approved excipients and preservatives. Basant inhibits the growth of WHO strains and clinical isolates of Neisseria gonorrhoeae, including those resistant to penicillin, tetracycline, nalidixic acid and ciprofloxacin. It has pronounced inhibitory action against Candida glabrata, Candida albicans and Candida tropicalis isolated from women with vulvovaginal candidiasis, including three isolates resistant to azole drugs and amphotericin B. Basant displayed a high virucidal action against human immunodeficiency virus HIV-1NL4.3 in CEM-GFP reporter T and P4 (Hela-CD4-LTR-betaGal) cell lines with a 50% effective concentration (EC50) of 1:20000 dilution and nearly complete (98-99%) inhibition at 1:1000 dilution. It also prevented the entry of HIV-1(IIIB) virus into P4-CCR5 cells (EC50 approximately 1:2492). Two ingredients, Aloe and Amla, inhibited the transduction of human papillomavirus type 16 (HPV-16) pseudovirus in HeLa cells at concentrations far below those that are cytotoxic and those used in the formulation. Basant was found to be totally safe according to pre-clinical toxicology carried out on rabbit vagina after application for 7 consecutive days or twice daily for 3 weeks. Basant has the potential of regressing vulvovaginal candidiasis and preventing N. gonorrhoeae, HIV and HPV infections.


Assuntos
Anti-Infecciosos/farmacologia , Candida/efeitos dos fármacos , HIV-1/efeitos dos fármacos , Papillomavirus Humano 16/efeitos dos fármacos , Neisseria gonorrhoeae/efeitos dos fármacos , Extratos Vegetais/farmacologia , Aloe/química , Animais , Anti-Infecciosos/toxicidade , Curcumina/química , Feminino , Doenças dos Genitais Femininos/microbiologia , Doenças dos Genitais Femininos/virologia , Células HeLa , Humanos , Phyllanthus emblica/química , Fitoterapia , Extratos Vegetais/toxicidade , Coelhos , Sapindus/química , Cremes, Espumas e Géis Vaginais
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