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1.
J Assoc Physicians India ; 71(1): 1, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37116027

RESUMO

INTRODUCTION: Anemia frequently occurs during course of clinical thyroid diseases. Without proper diagnosis & effective treatment of underlying thyroid disease, it is often difficult to achieve complete correction of anemia. AIM: The present study was conducted to assess prevalence & types of anaemia in patients with thyroid disorders. MATERIALS: A cross sectional study was conducted on 160 patients including both hypothyroid & hyperthyroid patients at OPD/IPD in SRN Hospital affiliated to MLN Medical college Prayagraj between July 2021 & August 2022. Blood samples were taken to estimate CBC, GBP with Retic count, S. ferritin, S. folate, S. Vitamin B12, Thyroid profile. Data was entered in MS Excel Spreadsheet & appropriate statistical package applied. RESULT: Out of 144 hypothyroid patients, 102 (70.83%) were found to be anaemic & out of 16 hyperthyroid patients, 6 (37.5%) were found to be anaemic. In 102 anaemic hypothyroid patients, 56 (54.9%)had normocytic normochromic, 25 (24.5%) had microcytic and 21 (20.5%) had macrocytic anaemia. In 6 anaemic hyperthyroid patients, 3 (50%) had normocytic normochromic, 2(33.33%) had microcytic and 1 (16.67%) had macrocytic anaemia. CONCLUSION: High prevalence of anaemia was found in patients with thyroid disorders. Anaemia is an uncommon finding in hyperthyroidism but when present may be similar to that present in hypothyroidism. The most common type of anaemia in both hyperthyroidism & hypothyroidism was found to be normocytic normochromic, followed by microcytic & least common being macrocytic. References Suhail N, Abu Alsel BT, Batool S. Prevalence and association of thyroid dysfunction with anemia/body iron status among northern border Saudi population. Int J Med Res Health Sci 2020;9(3):1-7. Peraka SA, Karre S, Ravuri S, et al., To evaluate prevalence of anemia in hypothyroid patients. J Diagn Pathol Oncol 2019;4(2):110-113.


Assuntos
Anemia Macrocítica , Anemia , Hipertireoidismo , Hipotireoidismo , Doenças da Glândula Tireoide , Humanos , Ácido Fólico , Vitamina B 12 , Estudos Transversais , Hormônios Tireóideos , Doenças da Glândula Tireoide/complicações , Doenças da Glândula Tireoide/epidemiologia , Hipotireoidismo/epidemiologia , Hipotireoidismo/complicações , Hipertireoidismo/complicações , Hipertireoidismo/epidemiologia , Anemia Macrocítica/complicações , Ferritinas
2.
J Assoc Physicians India ; 71(5): 11-12, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37355822

RESUMO

OBJECTIVE: (1) To study cerebrospinal fluid (CSF) adenosine deaminase (ADA) and CSF C-reactive protein (CRP) levels in the differentiation of viral, pyogenic, and tuberculous meningitis (TBM). (2) To estimate the borderline levels of CRP in CSF in viral, pyogenic, and TBM. METHODS: A prospective and cross-sectional study was conducted at the Department of Medicine, SRN Hospital, Prayagraj, Uttar Pradesh, India, between August 2016 and September 2018. In this study, a total of 100 patients with meningitis were included applying specific inclusion and exclusion criteria after proper ethical approval. RESULTS: Out of 100 patients, 61 were TBM, 31 were pyogenic meningitis, and eight were viral meningitis (VM). CSF CRP level was significantly increased in pyogenic meningitis (1.05 ± 0.36 mg/dL) compared to nonpyogenic meningitis [TBM (0.42 ± 0.13 mg/dL) and VM (0.37 ± 0.09 mg/dL)]. At the cut-off level of CRP in CSF > 0.6 mg/dL, its diagnostic sensitivity in pyogenic meningitis was 93.55% and specificity 94.20%. While CSF ADA levels were higher in the TBM group (13.32 ± 3.21 U/L) compared to the other two groups [pyogenic meningitis (6.15 ± 1.27 U/L) and VM (4.86 ± 0.88 U/L)]. At a cut-off, CSF ADA level of >10 U/L, its diagnostic sensitivity for TBM was 91.67% and specificity 90%. CONCLUSION: Cerebrospinal fluid (CSF) CRP levels were found to be raised in pyogenic meningitis, and CSF ADA was found to be elevated in TBM. While both ADA level and CRP level in CSF are found low in VM.


Assuntos
Adenosina Desaminase , Proteína C-Reativa , Meningites Bacterianas , Tuberculose Meníngea , Humanos , Adenosina Desaminase/líquido cefalorraquidiano , Proteína C-Reativa/líquido cefalorraquidiano , Líquido Cefalorraquidiano , Estudos Transversais , Meningites Bacterianas/diagnóstico , Estudos Prospectivos , Tuberculose Meníngea/diagnóstico , Tuberculose Meníngea/líquido cefalorraquidiano
3.
J Anaesthesiol Clin Pharmacol ; 39(3): 349-354, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38025573

RESUMO

Background and Aims: There is a huge load of central line-associated bloodstream infection (CLABSI) being reported in developing countries, with increased mortality and healthcare costs. Effective surveillance is a must to reduce the incidence of CLABSI. The current criteria (Centre for Disease Control and Prevention/National Healthcare Safety Network [CDC/NHSN]) for CLABSI surveillance have their own shortcomings. For diagnosing CLABSI, current CDC/NHSN CLABSI surveillance criteria are laborious and time consuming with low predictive power. Hence, modified criteria have been postulated, which are simple and implementable at resource-constrained setups. The primary objective was to compare modified criteria with CDC criteria. The secondary objective was to determine the prevalence of CRBSI. Material and Methods: A total of 98 patients with central line in situ or having the central venous line removed ≤24 hrs prior to the date of the event were enrolled. Paired blood cultures were obtained and results were analyzed using differential time to positivity. Results: The incidence of CLBSI was 8.16% and the device utilization rate was 11.6%. The negative predictive value of both the surveillance criteria was found to be excellent and comparable (96.2% for modified criteria and 97.1% for CDC criteria), therefore both can be used for screening purposes. AUC for current CDC/NHSN criteria was better than modified criteria (0.76 versus 0.66, P < 0.0001), suggesting it to be a better criterion for surveillance of CLABSI. Conclusion: Modified criteria were not superior to CDC/NHSN criteria for surveillance. Thus, there is a scope of improving the modified criteria for the purpose of surveillance. CLBSI load was higher; CLABSI bundle for prevention is thus highly recommended.

4.
J Assoc Physicians India ; 70(4): 11-12, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35443487

RESUMO

Acute kidney injury (AKI) is a frequently encountered outcome in critically ill patients, accounting for increased mortality. Neutrophil gelatinase associated lipocalin (NGAL) has been of paramount importance as a novel biomarker of AKI. This study is an attempt to assess the use of NGAL in critically ill patients so that timely interventions can be done to reduce morbidity and mortality in such patients. MATERIAL: A prospective observational study was conducted at SRN Hospital, Prayagraj from August 1st 2020 to March 15th 2021, which included only critically ill patients with SOFA score>1 and requiring ICU admission. Patients of known renal diseases were excluded from the study. Blood as well as urinary samples for NGAL and other laboratory parameters were collected within 8 hours of admission. Patients who developed renal dysfunction were noted as our cases and the others were noted as controls. OBSERVATION: The study was done on 125 patients, out of which 67 developed AKI while 58 did not develop AKI. Higher mortality was seen in patients with higher stage of AKI (P- 0.011). The cutoff of serum and urinary NGAL for predicting AKI were >42.3 ng/mL, >40.5 ng/mL respectively (P value <0.001). Hazard Ratio for all cause mortality of raised serum and urinary NGAL was 2.0062 (p value- 0.0001, 95% CI-1.0031 to 1.0092) and 2.0046 (p value-0.0035, 95% CI-1.0015 to 1.0078) respectively. Serum and urinary neutrophil gelatinase associated lipocalin at values >91 and >131 respectively were found to predict requirement of hemodialysis (p value<0.001). CONCLUSION: A single measurement of NGAL at the time of admission had good predictive ability for AKI. Higher values of NGAL were associated with staging of AKI and thus, correlated with need of hemodialysis. Furthermore, mortality was found to be associated with development of AKI and raised NGAL. Thus, NGAL maybe used to assess the prognosis of ICU patients so that patients at high risk may be managed aggressively, thus reducing mortality.


Assuntos
Injúria Renal Aguda , Estado Terminal , Injúria Renal Aguda/diagnóstico , Injúria Renal Aguda/etiologia , Biomarcadores , Feminino , Humanos , Lipocalina-2/urina , Masculino , Prognóstico
5.
Indian J Crit Care Med ; 26(6): 676-681, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35836643

RESUMO

Background: Delirium is frequently observed among critically ill patients in the intensive care unit. Although a preventable and reversible process, it is associated with greater morbidity and mortality. Early recognition and interpreting the predisposing and precipitating risk factors for delirium can improve outcomes among these patients. Objective: A prospective observational study was conducted with the primary objective to evaluate the incidence of delirium in a mixed adult intensive care unit. The secondary objectives were the evaluation of risk factors and outcomes of delirium. Methods: All patients who were more than 18 years of age and with an ICU stay of more than 24 hours were included in the study. Patients with prior history of neurological disorders, psychosis, and who were deaf were excluded. Eligible patients were evaluated by the residents to detect delirium using confusion assessment method for the intensive care unit (CAM-ICU) as a tool. Results: A total of 110 patients were included, and delirium was detected in 41 patients (37.3%). Among the predisposing risk factors, only hypertension was significantly associated with delirium. Among precipitating factors, mechanical ventilation, use of physical restraints and presence of window/natural light exposure, high Acute Physiology and Chronic Health Evaluation II scores, use of opioids, and benzodiazepines were associated with delirium. In multivariate risk regression analysis, presence of window/natural light exposure [odds ratio (OR), 55.52; 95% CI (8.887-346.904)]; (p <0.001) and duration of stay in ICU OR (1.145); 95% CI (1.058-1.238) (p = 0.001) were independent risk factors of delirium. Also, high mortality (53.7%) was observed among the delirious group of patients. Conclusion: Delirium is a common problem in the ICU and is associated with poor outcomes. Various risk factors are linked to ICU environment. How to cite this article: Junior MM, Kumar A, Kumar P, Gupta P. Assessment of Delirium as an Independent Predictor of Outcome among Critically Ill Patients in Intensive Care Unit: A Prospective Study. Indian J Crit Care Med 2022;26(6):676-681.

6.
Indian J Crit Care Med ; 26(2): 239-243, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35712740

RESUMO

Bartter-like syndrome (BLS) is a constellation of biochemical abnormalities which include metabolic alkalosis, hypokalemia, hypocalcemia, hypomagnesemia with normal kidney function. BLS is a very rare syndrome and can be induced by certain diseases, antibiotics, diuretics, and antineoplastic drugs. Colistin is a polymicrobial bactericidal drug and currently re-emerged as the only salvation therapy against multidrug resistant bacilli especially in critically ill patients at intensive care units. Only an anecdotal case report of colistin-induced Bartter-like syndrome has been reported. We here report a case series of four critically ill patients who were on treatment with colistin and presented with serious metabolic disturbances. How to cite this article: Kumari A, Gupta P, Verma H, Kumar A, Thakur P, Sharma K. Colistin-induced Bartter-like Syndrome: Ponder before Treatment! Indian J Crit Care Med 2022;26(2):239-243.

7.
Matern Child Nutr ; 17 Suppl 1: e13143, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34241957

RESUMO

In Nepal, an at-scale, multisectoral programme-Suaahara (2011-2023)-aims to improve nutrition behaviours. Suaahara II (2016-2023) transitioned from a mother/child dyad focus to explicitly targeting all family members. Evidence is scant, however, regarding how exposure by men to social and behaviour change interventions relates to nutrition outcomes. This study uses a 2019 cross-sectional monitoring dataset to test associations between maternal and male household head exposure to Suaahara II interventions (interacting with a frontline worker, participating in a community event or listening to the Bhanchhin Aama radio programme) and adoption of three infant and young child feeding practices: minimum dietary diversity, minimum acceptable diet and sick child feeding, in households with a child under 2 years (n = 1827). Maternal exposure to Suaahara II had a positive association with minimum dietary diversity (OR: 1.71, 95% CI [1.27, 2.28], P < 0.001), minimum acceptable diet (OR: 1.60, 95% CI [1.19, 2.14], P = 0.002) and increased feeding to a sick child (OR: 2.11, 95% CI [1.41, 3.17], P < 0.001). Male household head exposure was only associated with increased feeding to a sick child (OR: 2.21, 95% CI [1.27, 3.84], P = 0.005). Among households with an exposed mother, having an exposed male household head nearly tripled the odds of appropriate sick child feeding (OR: 2.90, 95% CI [1.57, 5.34], P = 0.001) but was not significantly associated with the other two outcomes. These findings suggest that the relationships between exposure to nutrition programmes and outcomes are complex and further research is needed to understand variation by family member, behavioural outcome and context.


Assuntos
Comportamento Alimentar , Estado Nutricional , Aleitamento Materno , Criança , Estudos Transversais , Dieta , Feminino , Humanos , Lactente , Fenômenos Fisiológicos da Nutrição do Lactente , Masculino , Mães , Nepal
8.
Indian J Crit Care Med ; 25(5): 507-511, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-34177168

RESUMO

BACKGROUND: Procalcitonin, a biomarker to adjudge the duration of antibiotic therapy in patients with sepsis. MATERIALS AND METHODS: A prospective, randomized, controlled, interventional, single-center study was conducted in a mixed adult intensive care unit (ICU). In a nonblinded study, 90 adult patients admitted to the ICU with sepsis and septic shock were randomized into group P (group procalcitonin) and group C (group control). The duration of antibiotic therapy was decided based on serum procalcitonin levels for patients in group P versus standard treatment protocols in group C. A procalcitonin value of <0.01 ng/mL or a subsequent decline of >80% from the baseline was cutoff and chosen to stop the antibiotic therapy. The primary aim was to compare the duration of antibiotic therapy (in days) in the two groups. The secondary objective was to compare and assess the length of ICU stay, reinfection, secondary infection rate, readmission rate, and mortality among the groups. RESULTS: The mean duration of antibiotic therapy was significantly lesser in patients in group P (4.98 ± 2.56 vs 7.73 ± 3.06 days, p < 0.001). Patients in group C spent more days in ICU (8.80 ± 3.35 vs 5.98 ± 2.73 days, p < 0.001). The secondary infection rate was significantly higher in group C (26.7% vs 4.4%, p = 0.014). Readmission and mortality rates were comparable between the groups. CONCLUSION: Serum procalcitonin-based algorithm in critically ill patients with sepsis could lead to a reduction in the duration of antibiotic therapy, ICU stay, and associated morbidities like secondary infection rates. It further promotes antibiotic stewardship without any adverse effects on the patient's outcome. HOW TO CITE THIS ARTICLE: Vishalashi SMG, Gupta P, Verma PK. Serum Procalcitonin as a Biomarker to Determine the Duration of Antibiotic Therapy in Adult Patients with Sepsis and Septic Shock in Intensive Care Units: A Prospective Study. Indian J Crit Care Med 2021;25(5):507-511.

9.
Indian J Crit Care Med ; 24(3): 208-209, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32435103

RESUMO

With increasing awareness of "greener" environment, market is flooded with biopesticide. Natural insecticides can be chemical, mineral, or biological. We report an unusual case of methemoglobinemia after deliberate ingestion of an insecticide containing extract of pine oil and azadirachtin oil, Ti oil, and kerosene. On literature search, no such case report has been documented so far. How to cite this article: Gupta P, Verma PK. A Rare Cause of Methemoglobinemia: How Safe are So-called Biopesticide? Indian J Crit Care Med 2020;24(3):208-209.

11.
Angew Chem Int Ed Engl ; 57(28): 8498-8502, 2018 07 09.
Artigo em Inglês | MEDLINE | ID: mdl-29787629

RESUMO

The first example of a smart crystalline material, the 2:1 cocrystal of probenecid and 4,4'-azopyridine, which responds reversibly to multiple external stimuli (heat, UV light, and mechanical pressure) by twisting, bending, and elastic deformation without fracture is reported. This material is also able to self-heal on heating and cooling, thereby overcoming the main setbacks of molecular crystals for future applications as crystal actuators. The photo- and thermomechanical effects and self-healing capabilities of the material are rooted in reversible trans-cis isomerization of the azopyridine unit and crystal-to-crystal phase transition. Fairly isotropic intermolecular interactions and interlocked crisscrossed molecular packing secure high elasticity of the crystals.

12.
J Res Med Sci ; 23: 86, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30505324

RESUMO

Bullhorn injury is a rare mechanism causing traumatic abdominal wall hernia (TAWH). Bullhorn injury needs to be discussed as a separate sub-entity among TAWHs as the mechanism of injury is such that the great force is generated at a relatively small area of impact for a short duration of time which may lead to muscle defect without compromising integrity of overlying skin (referred to as sheathed goring) leading to herniation of abdominal viscera. The purpose of this review was to discuss abdominal herniation's associated with bullhorn injury as a separate entity from TAWHs; recognize the common presentations, mechanism of injury, and modalities of treatment currently utilized for this rare condition. A comprehensive online English, Spanish, Portuguese, and French language medical literature search was done using various electronic search databases. Different search terms including MeSH related to bullhorn-injury associated injuries including abdominal wall hernias were used. An advanced search was further conducted by combining all the search fields in abstracts, keywords, and titles. We summarized the data from the searched articles and found 12 cases who underwent emergency or elective herniorrhaphy with or without the use of mesh. We have proposed a treatment algorithm for such cases in light of the present era of laparoscopy and propose the usage of the term "bullhorn-injury associated traumatic hernia" for such cases. We present here the first most comprehensive discussion of all such cases reported till date.

13.
J Med Virol ; 89(9): 1606-1619, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-28370302

RESUMO

Targeting properties of vertically transmitted viruses in early infancy is important to understand disease progression. To investigate genotypic characteristics of transmitted viruses, blood samples were obtained from infants aged 6 weeks-18 months, categorized in two age groups, acute (<6 months) and early (>6-18 months). Nef having an important role in pathogenesis was selected to explore the viral characteristics. A total of 57 PCR positive samples, amplified by nef gene were sequenced. Analysis showed that 50 sequences belonged to subtype C. In one sequence of acute age group, a long insertion of 10 residues (AAERMRRAEP) in variable region and a 13 residues deletion (ATNNADCAWLEAQ) around proteolytic cleavage region of gene in another sequence was observed. Insertions were also observed in sequences of early age group, however, they ranged from two to eight residues only. In one sequence of early age group, 3/4 arginines at positions 19, 21, 22 of arginine cluster were mutated to glutamine, alanine, and glutamine, respectively. Entropy analysis of two age groups revealed presence of several residues with statistically significant differences in their variability. Among these, 15 (R18,R23,R24; A66,L68,Q71; E74,E77,E78; V87,M92; R119, P144, E167, and C176) belonged to functional motifs, out of which, 12 were in acute age group, suggesting that variability was greater in this group. Prediction of HLA binding peptide motif revealed that epitope LTFGWCFKL was present in >80% study sequences. This epitope was also present in maximum number of HLA types circulating in India and vaccine candidate sequences, suggesting that it may be helpful in designing an epitope-based vaccine.


Assuntos
Variação Genética , Infecções por HIV/virologia , HIV-1/genética , Produtos do Gene nef do Vírus da Imunodeficiência Humana/genética , Sangue/virologia , Epitopos de Linfócito T/genética , Genótipo , Humanos , Índia , Lactente , Mutação , Reação em Cadeia da Polimerase , Análise de Sequência de DNA , Produtos do Gene nef do Vírus da Imunodeficiência Humana/classificação
15.
Eur J Nucl Med Mol Imaging ; 41(3): 494-504, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24158184

RESUMO

PURPOSE: The purpose of the present study was to evaluate the diagnostic accuracy of (68)Ga-DOTANOC positron emission tomography (PET)/CT in patients with suspicion of pheochromocytoma. METHODS: Data of 62 patients [age 34.3 ± 16.1 years, 14 with multiple endocrine neoplasia type 2 (MEN2)] with clinical/biochemical suspicion of pheochromocytoma and suspicious adrenal lesion on contrast CT (n = 70), who had undergone (68)Ga-DOTANOC PET/CT, were retrospectively analyzed. PET/CT images were analyzed visually as well as semiquantitatively, with measurement of maximum standardized uptake value (SUVmax), SUVmean, SUVmax/SUVliver, and SUVmean/SUVliver. Results of PET/CT were compared with (131)I-metaiodobenzylguanidine (MIBG) imaging, which was available in 40 patients (45 lesions). Histopathology and/or imaging/clinical/biochemical follow-up (minimum 6 months) was used as reference standard. RESULTS: The sensitivity, specificity, and accuracy of (68)Ga-DOTANOC PET/CT was 90.4, 85, and 88.7%, respectively, on patient-based analysis and 92, 85, and 90%, respectively, on lesion-based analysis. (68)Ga-DOTANOC PET/CT showed 100% accuracy in patients with MEN2 syndrome and malignant pheochromocytoma. On direct comparison, lesion-based accuracy of (68)Ga-DOTANOC PET/CT for pheochromocytoma was significantly higher than (131)I-MIBG imaging (91.1 vs 66.6%, p = 0.035). SUVmax was higher for pheochromocytomas than other adrenal lesions (p = 0.005), MEN2-associated vs sporadic pheochromocytoma (p = 0.012), but no difference was seen between benign vs malignant pheochromocytoma (p = 0.269). CONCLUSION: (68)Ga-DOTANOC PET/CT shows high diagnostic accuracy in patients with suspicion of pheochromocytoma and is superior to (131)I-MIBG imaging for this purpose. Best results of (68)Ga-DOTANOC PET/CT are seen in patients with MEN2-associated and malignant pheochromocytoma.


Assuntos
Neoplasias das Glândulas Suprarrenais/diagnóstico por imagem , Imagem Multimodal , Compostos Organometálicos , Feocromocitoma/diagnóstico por imagem , Tomografia por Emissão de Pósitrons , Compostos Radiofarmacêuticos , Tomografia Computadorizada por Raios X , 3-Iodobenzilguanidina/normas , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Compostos Organometálicos/normas , Compostos Radiofarmacêuticos/normas , Padrões de Referência , Sensibilidade e Especificidade
16.
Arch Virol ; 159(9): 2303-20, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24748005

RESUMO

Genetic heterogeneity in the nef genes from human immunodeficiency virus type 1 (HIV-1)-infected rapid progressors (RPs) and long-term nonprogressors (LTNPs) was analyzed to identify various amino acid substitutions responsible for the discernible difference in disease progression. It was found that the majority of the strains characterized belonged to subtype C, followed by several BC recombinants and subtype A1. Complete nef subtype C sequences from 33 RPs and seven LTNPs were compared, and it was observed that, in the majority of the sequences from both groups, highly conserved functional motifs showed subtle changes. However, drastic changes were observed in two isolates from LTNPs where the arginine cluster was deleted, while in one of them, additionally, acidic residues were replaced by basic residues (EEEEE→RK(R)KKE). The deletion of the arginine cluster and the mutation of acidic residues to basic residues are predicted to delay disease development by abolishing CD4 downmodulation and causing diminution of major histocompatibility complex class I (MHC-I) downregulation, respectively. Nonetheless, this is an exclusive finding in these LTNPs, which necessitates their analysis at the functional level. The synonymous-to-nonsynonymous substitution ratio was greater than one in both of the groups, suggesting amino acid sequence conservation and functional robustness. Interpatient nucleotide distance within the group and between the two groups showed very little variation, confirming genetic relatedness among isolates.


Assuntos
Síndrome da Imunodeficiência Adquirida/patologia , Síndrome da Imunodeficiência Adquirida/virologia , Variação Genética , HIV-1/genética , Mutação , Produtos do Gene nef do Vírus da Imunodeficiência Humana/genética , Adulto , Feminino , Sobreviventes de Longo Prazo ao HIV , HIV-1/imunologia , HIV-1/isolamento & purificação , Humanos , Masculino , Pessoa de Meia-Idade , Dados de Sequência Molecular , Análise de Sequência de DNA , Adulto Jovem , Produtos do Gene nef do Vírus da Imunodeficiência Humana/metabolismo
17.
J Nanosci Nanotechnol ; 14(7): 4995-5001, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24757972

RESUMO

In the present study, CdPbS composite has been synthesized in the P3HT matrix in a single step. The synthesis has been carried out at a temperature of 120 degrees C by the decomposition of xanthate compound in the polymer matrix. This synthesis method helps in proper distribution of nanoparticles in the polymer matrix. The synthesized materials were characterized using UV-Vis spectroscopy, X-ray diffraction, transmission electron microcopy, photoluminescence (PL) and time resolved florescence spectroscopy. The P3HT/CdPbS nanoparticle composite can absorb photon in the range of 0.7 eV to 2.7 eV and a charge transfer between CdPbS and P3HT has been observed. It has been proposed that this composite may increase both the Voc as well as Jsc by better utilization of solar spectrum and increased charge transfer.

18.
J Nanosci Nanotechnol ; 14(7): 5324-30, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24758026

RESUMO

In the present study, a generic method for the modification of optical band gap of CdS nanostructures material over a wide spectral range due to Pb doping and formation of Cd(1-x)Pb(x)S nanoparticles and its size confinement is reported. The composite investigated in this study was grown by thermal decomposition of metal xanthates and lead concentration was varied to obtain different lead doping. This is a direct decomposition one pot synthesis route that avoids use of toxic phosphine and injection of chemicals during the reaction. The prepared nanoparticles were characterized by XRD, SEM, EDX, and HRTEM. The optical absorption properties of the Cd(1-x)Pb(x)S nanostructures were investigated by UV-visible spectroscopy. Cd(1-x)Pb(x)S nanoparticles showed tuning of the band gap from 2.7 eV to 0.7 eV.

19.
Mycopathologia ; 177(1-2): 103-10, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24318775

RESUMO

Schizophillum commune is an environmental fungus rarely causing human infections of diverse nature. Sinusitis occurs in immunocompromised persons and seldom in healthy subjects. Though easily isolated, the lack of awareness of its virulence is a bottleneck in the diagnosis of this infection. We report the first case of S. commune sinusitis with nasal polyps in an immunocompetent male from the sub-Himalayan region. The computerized tomography scan findings established the clinical diagnosis, and causative agent was confirmed as S. commune. A white, woolly mold with septate, hyaline hyphae and characteristic spicules but unclamped connections suggested a monokaryotic isolate. Patient was treated successfully with fiberoptic endoscopic sinus surgery, and no antifungal therapy was instituted. There was no recurrence at review after 1 year.


Assuntos
Micoses/microbiologia , Pólipos Nasais/microbiologia , Schizophyllum/patogenicidade , Sinusite/microbiologia , Adulto , Idoso , Endoscopia , Feminino , Humanos , Hifas/fisiologia , Masculino , Pessoa de Meia-Idade , Técnicas de Tipagem Micológica , Micoses/diagnóstico , Micoses/cirurgia , Pólipos Nasais/cirurgia , Sinusite/diagnóstico , Sinusite/cirurgia , Tomografia Computadorizada por Raios X , Adulto Jovem
20.
ScientificWorldJournal ; 2014: 824586, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24672380

RESUMO

Bacopa monnieri (L.) is an important medicinal plant mainly known as a memory enhancing herb. It is important to see the effect of metal pollution on its active constituents. In this context, efforts have been made to observe the effect of Cd on the triterpenoid saponins bacoside A and bacopaside I in this plant. The influence of the metal on growth parameters like protein, chlorophyll content, and biomass has also been observed. It is interesting to note that the bacoside A and bacopaside I gradually increased by the Cd treatment up to 10 µM and then decreased at higher concentrations, that is, 50 and 100 µM, but the concentration of these components was more in all the treated plants as compared to control. On the contrary, protein, chlorophyll content, and biomass decreased with the increase in metal concentration and exposure duration due to metal toxicity.


Assuntos
Cádmio/toxicidade , Memória/efeitos dos fármacos , Saponinas/farmacologia , Triterpenos/farmacologia
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