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1.
Artigo | IMSEAR | ID: sea-209281

RESUMO

Introduction: Laparoscopic surgeries in various surgical specialties are most routinely performed with general anesthesia. Thephysiological effects of intra-abdominal CO2 insufflation combined with the variations in patient positioning can have a majorimpact on cardiorespiratory function. Prolongation of corrected QT interval (QTc) has been known to predispose torsades depointes, a potentially fatal ventricular arrhythmia may occur during CO2 insufflation. Our aim is to evaluate the effect of insufflationof CO2 on QT interval and QTc during prolonged laparoscopic surgeries.Methodology: Fifty patients of American Society of Anesthesiologists physical status 1 and 2, of either sex, between the agesof 25 and 65 years posted for laparoscopic surgeries included in the study. After general anesthesia, we measured mean arterialpressure, heart rate, SpO2 and ETCO2 before anesthesia induction, before CO2 insufflation, 30, 60, 120, and 150 min after CO2insufflation, 5 min after CO2 deflation, and at the end of surgery. We observed statistically significant increase of QTc intervalaround 120 min after CO2 insufflation.Conclusion: The cause of this QTc interval prolongation is multifactorial and clinical significance of producing life-threateningcardiac arrhythmias has to be determined.

2.
Artigo | IMSEAR | ID: sea-201034

RESUMO

Background: Human life is enriched by mechanical, recreational and innovative activities performed by an individual. Disability is a complex phenomenon, reflecting the interaction between features of a person’s body and the society in which he or she lives. Quality of life is defined by a subjective evaluation of the life circumstances of an individual with respect to his/her values. The objective of the study was to study the prevalence of physical disability and their economic dependence and quality of life in Orathur rural population.Methods: Data was collected by house to house survey of rural population, Orathur, Cuddalore district, Tamil Nadu through pre structured questionnaire and clinical examination .The tools used include interview schedule and sickness impact profile (SIP) scale with modification. Data was analyzed statistically.Results: A total of 4508 population were surveyed in this study to find out the prevalence of disability and burden of disability. Totally 308 physically disabled persons were identified (6.8% prevalence rate). It was found that visual disability was most common disability. Economic dependency and impact on quality of life was found to be more in visual disability than other types of disability. Information on extent of impact of disabilities is required to formulate future policies aiming at improving quality of life of disabled people and making them economically independent.Conclusions: Visual disability was the most prevalent disability in the present study and Cataract being the leading cause. Vocational rehabilitation measures specifically for rural disabled people should be initiated by government and non governmental agencies to improve the economic status.

3.
Int J Pharm Pharm Sci ; 2019 Jan; 11(1): 10-16
Artigo | IMSEAR | ID: sea-205826

RESUMO

Lung cancer is the most frequent malignant tumour with the highest mortality rate around the world, leading to greater than a million deaths annually. The number of deaths due to lung cancer is expected to increase to ten million deaths per year in 2030. The major risk factor for the development of lung cancer is cigarette smoking but relatively high rates of lung cancer occur among non-smoking women and 10-25% of lung cancer observed in never smokers. The lung cancer deaths occur in never smokers have been estimated to be the 7th leading cause of cancer mortality. This article mainly discusses the important etiological factors of lung cancer in never smokers such as the environmental factors, occupational exposure, history of lung disease, family history and genetic factors, unbalanced diet and high consumption of saturated fat, radiation exposure, socioeconomic status, and infections. Gender, obesity and metabolic syndrome, race and ethnicity and interstitial lung diseases also have effects on the development of lung cancer in never smokers.

4.
Indian J Exp Biol ; 2014 Feb; 52(2): 133-138
Artigo em Inglês | IMSEAR | ID: sea-150341

RESUMO

Free radical scavenging activity, ferrous ion chelating capacity, reducing power and genoprotective effect of the aqueous leaf extracts of four unexplored endemic Curcuma spp. (C. vamana, C. neilgherrensis, C. mutabilis, C. haritha) were found to be dose-dependent and were highest in C. vamana. DNA protection property of the extracts was evaluated against H2O2/UV-induced oxidative damage. DNA-methyl green displacement assay showed that these extracts were free of DNA intercalating compounds. Further, hemolysis assay also showed that the extracts were non-toxic to human erythrocytes. The results highlight C. vamana as a promising source for herbal preparations possessing high antioxidant potential and genoprotective activity.


Assuntos
Antioxidantes/farmacologia , Curcuma/química , Dano ao DNA/efeitos dos fármacos , DNA de Plantas/efeitos dos fármacos , Sequestradores de Radicais Livres/metabolismo , Sequestradores de Radicais Livres/farmacologia , Humanos , Quelantes de Ferro/metabolismo , Quelantes de Ferro/farmacologia , Estresse Oxidativo/efeitos dos fármacos , Physarum polycephalum/efeitos dos fármacos , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Folhas de Planta/química
5.
Indian J Exp Biol ; 2013 Jan; 51(1): 81-87
Artigo em Inglês | IMSEAR | ID: sea-147571

RESUMO

Leaf extracts of C. vamana, endemic to Kerala state in India, were found to inhibit cell cycle progression in synchronous cultures of P. polycephalum in a concentration and phase-specific manner. Crude alkaloid extract (CAE) elicited maximum cell cycle delays in comparison to soxhletted chloroform, acetone and aqueous extracts. Total alkaloid content of CAE was found to be 64.9 mg/g. CAE showed lowest DPPH radical scavenging activity. Other extracts with higher free radical scavenging activity exhibited lesser cell cycle inhibiting potential. Upto 21% decrease in nuclear DNA was observed in CAE treated samples. However, genotoxicity as evidenced by comet assay was not observed. The extracts were also found to be non-toxic to human RBCs at the highest concentration tested (750 µg/mL). CAE treatment completely suppressed a 63 kDa polypeptide with a concomitant, but weak induction of a 60 kDa polypeptide suggesting that these may be cell cycle related. CAE was found to possess potent antiproliferative activity against PBLs. The study clearly demonstrates the cell cycle inhibitory activity of C. vamana leaf extracts, with CAE being the most potent of them.


Assuntos
Alcaloides/farmacologia , Compostos de Bifenilo/farmacologia , Ciclo Celular , Núcleo Celular/metabolismo , Proliferação de Células , Ensaio Cometa/métodos , Curcuma/metabolismo , Dano ao DNA , Relação Dose-Resposta a Droga , Citometria de Fluxo/métodos , Radicais Livres/química , Humanos , Linfócitos/citologia , Mitose , Modelos Biológicos , Physarum polycephalum/metabolismo , Picratos/farmacologia , Extratos Vegetais/farmacologia , Folhas de Planta/metabolismo
6.
Indian J Exp Biol ; 2008 Jan; 46(1): 41-6
Artigo em Inglês | IMSEAR | ID: sea-59885

RESUMO

In the present study, antibacterial activity of aqueous and organic extracts of Psidium guajava leaves was evaluated against multidrug resistant (MDR) clinical isolates of Staphylococcus aureus strains collected from hospitals in northern (Malabar region) Kerala. The strains which exhibited resistance against all the antibiotics tested was selected for antibacterial assays. Minimum inhibitory concentration (MIC) for methanolic and aqueous extracts was found to be 625 ug/ml and 7.5 mg/ml, respectively. Minimum bactericidal concentration (MBC) recorded for methanolic and aqueous extracts was 1.25 and 12.5 mg/ml, respectively. Methanolic extract at minimum bactericidal concentration inhibited the growth of MDR strain by 80%. Time-kill assay revealed that methanolic extract (4 mg/ml) killed MDR bacteria within 10 hr. Total polypeptide profiling of bacterial cultures by SDS-PAGE indicated a high degree of protein degradative activity of the extract. Finally, a human RBC based haemolytic assay showed absence of haemolysis even at concentrations higher than that of MBC, advocating thereby its safety in therapeutic use.


Assuntos
Antibacterianos/farmacologia , Difusão , Farmacorresistência Bacteriana , Eletroforese em Gel de Poliacrilamida , Eritrócitos/metabolismo , Hemólise , Humanos , Metanol/química , Peptídeos/química , Extratos Vegetais/farmacologia , Folhas de Planta/metabolismo , Infecções Estafilocócicas/tratamento farmacológico , Staphylococcus aureus/metabolismo , Fatores de Tempo , Água/química
7.
Indian J Hum Genet ; 2005 Jan; 11(1): 35-38
Artigo em Inglês | IMSEAR | ID: sea-143326

RESUMO

Gastric biopsy samples obtained from 14 patients with upper abdominal pain, clinically diagnosed as acid peptic disease, were analysed for the presence of Helicobacter pylori (H. pylori) by Polymerase Chain Reaction (PCR) using partially (template A) and completely purified DNA (template B). Antigen specific primer was used to analyse the sample by PCR method. The presence of H. pylori in the samples was confirmed by running a positive control. The presence of H. pylori was also detected by urease method using standard protocol. Among the 14 samples studied, 8 showed the presence of H. pylori with both templates A and B. Among these 8 samples only 3 showed positive for the presence of H. pylori with urease method. The present work discusses the results obtained in the detection of H. pylori in template A and B by PCR method.

8.
J Postgrad Med ; 2004 Jul-Sep; 50(3): 204
Artigo em Inglês | IMSEAR | ID: sea-116589
9.
Indian J Physiol Pharmacol ; 2001 Apr; 45(2): 258-60
Artigo em Inglês | IMSEAR | ID: sea-106807
11.
Indian J Exp Biol ; 1998 Nov; 36(11): 1144-6
Artigo em Inglês | IMSEAR | ID: sea-60440

RESUMO

Kraus-Webber test which indicates muscle strength and flexibility of certain group of muscles showed significant decrease in cigarette smoking athletes in the age group of 19-30 years compared to nonsmoking athletes. The results indicate tobacco smoke inhalation affects muscle flexibility and strength required for athletes.


Assuntos
Adulto , Fenômenos Biomecânicos , Estudos de Casos e Controles , Humanos , Músculo Esquelético/fisiopatologia , Fumar/efeitos adversos , Esportes
12.
Indian Heart J ; 1998 Jul-Aug; 50(4): 446-50
Artigo em Inglês | IMSEAR | ID: sea-3040

RESUMO

Tetralogy of Fallot with restrictive ventricular septal defect and suprasystemic right ventricular pressure is an uncommon anomaly with high mortality rate. Very few such cases have been reported pre-operatively. This report describes echocardiographic features of five patients with restrictive ventricular septal defect due to flap valve in tetralogy of Fallot. In all the five cases, accessory or excessive tricuspid valve tissue obstructed the defect. Recognition of restrictive ventricular septal defect in tetralogy of Fallot is important because it appears to have poor prognosis.


Assuntos
Criança , Pré-Escolar , Ecocardiografia Doppler , Evolução Fatal , Feminino , Comunicação Interventricular/complicações , Humanos , Lactente , Masculino , Sensibilidade e Especificidade , Tetralogia de Fallot/complicações , Disfunção Ventricular Direita/complicações , Pressão Ventricular
14.
Indian J Biochem Biophys ; 1998 Apr; 35(2): 76-85
Artigo em Inglês | IMSEAR | ID: sea-26363

RESUMO

Preferential interaction parameters of multisubunit protein, alpha-globulin and monomeric protein human serum albumin (HSA) were determined in different cosolvents using precision densitymetry. The apparent partial specific volumes were determined under both isomolal and isopotential conditions for alpha-globulin in 0.02 M glycine-NaOH buffer at pH 10 and the values were 0.692+/-0.002 and 0.688+/-0.001, ml/g, respectively, at 20.00+/-0.01 degrees C. From the partial specific volume data with cosolvents the preferential interaction parameter (xi3) and other thermodynamic parameters were calculated at different solvent concentrations. The (xi3) values increased with an increase in the solvent concentration up to 30% and reached a maximum with the values of-0.111+/-0.018 g/g and -0.076+/-0.012 g/g in sucrose and sorbitol, respectively. In glycerol the (xi3) values decreased with an increase in solvent concentration. The above data is further supported by thermal denaturation profiles in which the apparent thermal denaturation temperature (apparent Tm) of alpha-globulin shows an increase from 63 degrees C to higher temperatures in the order of sucrose, sorbitol and glycerol. Alpha-globulin showed coagulation due to protein interaction at temperatures above 50 degree C. The apparent Tm of 63 degrees C for control protein was increased significantly up to 75 degrees C in 40% sorbitol with two fold increase in the delta(S) values showing the increased structural stability of alpha-globulin. At high solvent concentration the protein gets dissociated and the resultant monomers are hydrated which was evident by fluorescence data and the difference spectral results with a 6nm red shift in the emission maximum and 2 nm blue shift in UV-absorption maximum arising out of perturbation of aromatic chromophores. The studies were performed both at native pH of 7.9 where the protein is in its oligomeric form and at pH of 10 where it is dissociated form and the results compared. The data showed that the solvent is excluded more from the protein vicinity in the dissociated state.


Assuntos
Densitometria/métodos , Globinas/química , Glicerol , Temperatura Alta , Humanos , Substâncias Macromoleculares , Desnaturação Proteica , Sementes , Solventes , Sorbitol , Espectrometria de Fluorescência/métodos , Espectrofotometria Ultravioleta/métodos , Sacarose , Termodinâmica , Triptofano/análise , Tirosina/análise
18.
Indian J Exp Biol ; 1991 Apr; 29(4): 305-9
Artigo em Inglês | IMSEAR | ID: sea-61570

RESUMO

The synergistic effect of UV irradiation and heat-shock during the last 3 hr of G2 phase of the cell cycle in the plasmodia of P. polycephalum, in terms of mitotic delay and inhibition of protein synthesis, has been evaluated. The mitotic delay due to both perturbers coordinately increased closer to mitosis. Maximum mitotic delay was obtained in plasmodia heat-shocked after UV irradiation, indicating the presence in this system of either a heat-labile mitogenic substance which is comparatively less susceptible to UV or a substance which is made more susceptible to hyperthermia by UV. A protective role for heat-shock applied before irradiation has been observed in that, radiation-induced mitotic delay is significantly reduced in this combination. There was severe inhibition of translation in all the perturbed classes. Organelle level effects which are independent of major protein synthetic activities or different levels of heat-shock protein production could be the reason for the lack of correlation between percentage inhibition of general protein synthesis and the extent of mitotic delay with respect to the two double-perturbed systems.


Assuntos
Proteínas Fúngicas/biossíntese , Fase G2/efeitos da radiação , Temperatura Alta , Mitose/efeitos da radiação , Physarum/citologia , Raios Ultravioleta
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