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1.
Georgian Med News ; (345): 62-66, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38325300

RESUMO

Irritable Bowel Disorder (IBD) is a prevalent digestive illness that frequently affects young people and drastically decreases the Quality of Life (QoL). Adults with IBD indications may find relief from their symptoms through nutritional changes like the Mediterranean-style diet. Concerning the seriousness of symptoms, QoL, and additional pertinent results in young people with IBD, this investigation seeks to determine the impact of the Mediterranean-style diet. 200 individuals with IBD who met the Rome-IV criterion and were between the ages of 13 and 19 were enrolled in the present research. A Mediterranean-style diet was provided to the Study Group (SG), which consisted of 100 individuals, while the Control Group (CG), which consisted of 100 patients, followed the usual diet. Various laboratory and clinical characteristics were also assessed at the beginning and end of the study, in addition to IBD values. The Mediterranean-style diet has been demonstrated to be effective and tolerated well in kids and teenagers with IBD. The IBD -SSS (from 148±42.3 to 224±71) IBD -QoL (from 76.7±8.1 to 61.3±9.8), and cumulative IBD rating (from 29.3±11.7 to 32.6±12.1) all showed notable increases in individuals who followed well to this diet. The CG, in comparison, did not show any significant enhancements in these factors. This indicates that a Mediterranean-style diet might provide therapeutic advantages for IBD individuals, especially those who keep adherent to it, concerning symptom severity and QoL. The Mediterranean-style diet proved to be both secure and associated with notable improvements in IBD rates in young and adolescents with IBD.


Assuntos
Dieta Mediterrânea , Doenças Inflamatórias Intestinais , Síndrome do Intestino Irritável , Humanos , Adulto , Adolescente , Adulto Jovem , Qualidade de Vida , Doenças Inflamatórias Intestinais/complicações , Doenças Inflamatórias Intestinais/diagnóstico , Inquéritos e Questionários
2.
J Fluoresc ; 27(6): 2263-2277, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-28849303

RESUMO

The phase diagram representing solid-liquid equilibrium of entire range of composition and thermodynamic studies of two binary organic systems of 4-dimethylaminobenzaldehyde (DMAB) with two NLO active compounds, p-aminoacetanilide (PAA) and p-nitroaniline (PNA), have been studied by solid state synthetic route. Both systems are independently forming a new entity called intermolecular complex (IMC) and two eutectics on either side of intermolecular complexes. The various thermodynamic parameters such as heat of mixing, entropy of fusion, roughness parameter, interfacial energy and excess thermodynamic functions of IMCs and eutectics were calculated using the heat of fusion values. The TGA and DTA studies were performed to understand the physico-chemical, thermal behavior and unique identity of newly synthesized organic complexes, 4-(dimethylamino)benzylidene-4-acetamideaniline (DMABPAA) and 4-(dimethylamino)benzylidene-4-nitroaniline (DMABPNA), and their respective enthalpy of fusion values were found to be 30.01 and 37.26 kJ mol- 1. The higher melting point of both the novel complexes than their parent's compounds reveal the strong molecular interaction between parent components to yield the complex. The FTIR spectral analysis predicts the disappearance of aldehyde peaks of DMAB and NH2 peaks of PAA and PNA while the appearance of entirely new peaks than that of parent's compounds are the supportive for the formation of new molecular entities. These findings are further supported by FTNMR spectrum studies by observation of disappearance of proton peak of aldehyde of DMAB and amine peaks of PAA and PNA rather formation of new imine proton peak or peaks were observed. The appearance of new peaks in Powder XRD of complexes than those of parent components is further indicative for the formation of complexes. The absorption spectrum of DMABPAA and DMABPNA showed intra-molecular charge-transfer (ICT) excited state absorption at 258 and 241 nm, respectively. Both the IMCs, DMABPAA and DMABPNA, show strong fluorescence with quantum yield 0.66 and 0.93, respectively, in methanol solution.

3.
Br J Biomed Sci ; 74(3): 121-126, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28571523

RESUMO

OBJECTIVE: To investigate the frequency and integrity of certain cag pathogenicity island genes (cagPAI) in Helicobacter pylori strains and their association with peptic ulcer disease (PUD) and gastric cancer. MATERIAL AND METHODS: We enrolled 240 adult patients [120 with functional dyspepsia (FD), 50 with PUD and 70 with gastric cancer] undergoing upper gastrointestinal endoscopy. H. pylori infection was diagnosed when either culture or any two of the three tests (rapid urease test, histopathology and specific ureA PCR) were positive. DNA extracted from H. pylori isolates and positive gastric tissues were tested by PCR for the presence of different genes of cagPAI using specific primers. RESULTS: A total of 122 (51%) patients were H. pylori positive. Frequencies of cagPAI genes cagA, cagE, cagT and cagM in H. pylori strains from different groups of patients were as follows: functional dyspepsia 73, 83, 76 and 60%, PUD 70, 94, 91, 70% and gastric cancer 75, 95, 90 and 70%, respectively. Risk associated for the presence of PUD and gastric cancer with cagPAI genes cagE, cagT and cagM was 5.0-, 4.6- and 4.1- and 3.0-, 2.8- and 2.5-folds, respectively. Prevalence of intact cagPAI was significantly higher in PUD and gastric cancer compared to functional dyspepsia (PUD vs. functional dyspepsia, 71% vs. 38%, P = 0.01; gastric cancer vs. functional dyspepsia, 75% vs. 38%, P < 0.01). Intact cagPAI was associated with increased risk for the presence of PUD (odds ratio 5.2, 95% CI 2.4-11.3) and for the presence of gastric cancer (odds ratio 4.5, 95% CI 2.3-7.1). CONCLUSIONS: cagPAI integrity and its different genes are linked to different forms of gastric disease and so may have a role in pathogenesis, diagnosis and management.


Assuntos
Proteínas de Bactérias/genética , Ilhas Genômicas/genética , Helicobacter pylori/genética , Helicobacter pylori/patogenicidade , Úlcera Péptica/microbiologia , Neoplasias Gástricas/microbiologia , Proteínas de Bactérias/metabolismo , Feminino , Genes Bacterianos , Humanos , Masculino , Pessoa de Meia-Idade
5.
Indian J Exp Biol ; 54(5): 332-7, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-27319052

RESUMO

In plants, basic region/leucine zipper motif (bZIP) transcription factors regulate several developmental processes and activate genes in response to biotic and abiotic stresses. Role of stress responsive bZIP transcription factors was studied in paddy in relation to different stages of development and water deficit stress (WDS) in a drought tolerant cultivar N22 and susceptible IR 64. Further, relative water content (RWC), membrane stability index (MSI) and abscisic acid (ABA) content were measured as indices of WDS at different stages of development and levels of stress. Expression of stress responsive bZIP transcription factors was directly correlated to developmental stage and WDS and indirectly to RWC, MSI and ABA content.


Assuntos
Fatores de Transcrição de Zíper de Leucina Básica/genética , Desidratação , Secas , Regulação da Expressão Gênica de Plantas , Oryza/genética , Proteínas de Plantas/genética , Plantas Geneticamente Modificadas/genética , Transcrição Gênica , Ácido Abscísico/metabolismo , Fatores de Transcrição de Zíper de Leucina Básica/metabolismo , Oryza/crescimento & desenvolvimento , Oryza/metabolismo , Proteínas de Plantas/metabolismo , Plantas Geneticamente Modificadas/crescimento & desenvolvimento , Plantas Geneticamente Modificadas/metabolismo , Fatores de Tempo
6.
Indian J Biochem Biophys ; 52(1): 75-85, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26040114

RESUMO

Plants, being sessile in nature, have developed mechanisms to cope with high salt concentrations in the soil. In this study, the effects of NaCl (50-200 mM) on expression of high-affinity potassium transporters (HKTs), antioxidant enzymes and their isozyme profiles were investigated in two contrasting bread wheat (Triticum aestivum L.) genotypes viz., HD2329 (salt-sensitive) and Kharchia65 (salt-tolerant). Kharchia65 can successfully grow in salt affected soils, while HD2329 cannot tolerate salt stress. Differential expression studies of two HKT genes (TaHKT2;1.1 and TaHKT2;3.1) revealed their up-regulated expression (-1.5-fold) in the salt-sensitive HD2329 and down-regulated (-5-fold) inducible expression in the salt-tolerant genotype (Kharchia65). Specific activity of antioxidant enzymes, viz. superoxide dismutase (SOD), peroxidase (POX), ascorbate peroxidase (APX), catalase (CAT) and glutathione reductase (GR) was found to be higher in the salt-tolerant genotype. Isozyme profile of two (POX and GR) antioxidant enzymes showed polymorphism between salt-tolerant and salt-sensitive genotypes. A new gene TaHKT2;3.1 was also identified and its expression profile and role in salt stress tolerance in wheat was also studied. Partial sequences of the TaHKT2;1.1 and TaHKT2;3.1 genes from bread wheat were submitted to the EMBL GenBank database. Our findings indicated that defence responses to salt stress were induced differentially in contrasting bread wheat genotypes which provide evidences for functional correlation between salt stress tolerance and differential biochemical and molecular expression patterns in bread wheat.


Assuntos
Genótipo , Cloreto de Sódio , Estresse Fisiológico , Triticum/genética , Sequência de Bases , Primers do DNA , Genes de Plantas , Reação em Cadeia da Polimerase , Triticum/fisiologia
7.
J Environ Biol ; 36(1): 221-8, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26536796

RESUMO

The study investigated extraction and consumption pattern of fuel wood, fodder and timber and forest biomass flow for fuel wood, fodder and timber security among tribal communities in Bundu block of Ranchi district in Jharkhand (India). The study is based on personal interviews of the selected respondents through structured interview schedule, personal observations and participatory rural appraisal tools i.e. key informant interviews and focus group discussions carried out in the sample villages, using multi-stage random sampling technique. The study revealed that the total extraction of fuel wood from different sources in villages was 2978.40 tons annum(-1), at the rate of 0.68 tons per capita annum(-1), which was mostly consumed in cooking followed by cottage industries, heating, community functions and others. The average fodder requirement per household was around 47.77 kg day(-1) with a total requirement of 14227.34 tons annum(-1). The average timber requirement per household was computed to be 0.346 m3 annum(-1) accounting for a total timber demand of 282.49 m3 annum(-1), which is mostly utilized in housing, followed by agricultural implements, rural furniture, carts and carriages, fencing, cattle shed/ store house and others. Forest biomass is the major source of fuel wood, fodder and timber for the primitive societies of the area contributing 1533.28 tons annum(-1) (51.48%) of the total fuel wood requirement, 6971.55 tons annum(-1) (49.00%) of the total fodder requirement and 136.36 m3 annum(-1) (48.27%) of the total timber requirement. The forest biomass is exposed to enormous pressure for securing the needs by the aboriginal people, posing great threat to biodiversity and environment of the region. Therefore, forest biomass conservation through intervention of alternative avenues is imperative to keep pace with the current development and future challenges in the area.


Assuntos
Ração Animal , Biomassa , Florestas , Madeira , Animais , Bovinos , Conservação dos Recursos Naturais , Monitoramento Ambiental , Humanos , Índia , Grupos Populacionais
8.
J Microsc ; 255(3): 169-73, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24956929

RESUMO

This work provides an electrodeposition-based methodology for synthesizing multicomponent nanowires containing Ag, Co and Ni atoms. Nanowire morphology was obtained by using an anodic alumina membrane with cylindrical pores of ∼ 200-nm diameter. Structural, compositional and magnetic characterization revealed that the as-synthesized nanowires adopted a core-shell microstructure. The core (axial region) contained pure Ag phase volumes with a plate-like morphology oriented perpendicular to the nanowire axis. The shell (peripheral region) contained pure Ag nanoparticles along with superparamagnetic Co and Ni rich clusters.

9.
Parasite Immunol ; 36(2): 60-77, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24112106

RESUMO

Eosinophil migration as key feature of helminth infection is increased during infection with filarial nematodes. In a mouse model of filariasis, we investigated the role of the eosinophil-attracting chemokine Eotaxin-1 on disease outcome. BALB/c and Eotaxin-1(-/-) mice were infected with the rodent filaria Litomosoides sigmodontis, and parasitic parameters, cellular migration to the site of infection, and cellular responsiveness were investigated. We found increased parasite survival but unaffected eosinophil migration to the site of infection in Eotaxin-1(-/-) mice. Expression of CD80 and CD86 was reduced on eosinophils from Eotaxin-1(-/-) mice after in vitro TLR2 stimulation and exposure to filarial antigen, respectively, suggesting a potential reduced activation state of eosinophils in Eotaxin-1 deficient mice. We further demonstrated that macrophages from Eotaxin-1(-/-) mice produce decreased amounts of IL-6 in vitro, a cytokine found to be associated with parasite containment, suggesting possible mechanisms by which Eotaxin-1 regulates activation of inflammatory cells and thus parasite survival.


Assuntos
Quimiocina CCL11/fisiologia , Eosinófilos/imunologia , Filariose/imunologia , Filarioidea/imunologia , Macrófagos/imunologia , Animais , Apresentação de Antígeno , Antígenos de Helmintos/imunologia , Movimento Celular , Células Cultivadas , Quimiocina CCL11/deficiência , Quimiocina CCL11/genética , Quimiocina CCL24/metabolismo , Quimiocina CCL5/metabolismo , Citocinas/metabolismo , Eosinófilos/fisiologia , Células Epiteliais/metabolismo , Feminino , Filariose/metabolismo , Filariose/parasitologia , Filarioidea/crescimento & desenvolvimento , Interleucina-6/metabolismo , Ativação de Macrófagos , Macrófagos/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Microfilárias/fisiologia , Carga Parasitária , Cavidade Pleural/imunologia , Cavidade Pleural/parasitologia , Baço/imunologia
10.
Inorg Chem ; 53(6): 2892-8, 2014 Mar 17.
Artigo em Inglês | MEDLINE | ID: mdl-24559083

RESUMO

A family of virtually isostructural tetra-capped ε-Keggin-type polyoxomolybdate(V) cluster compounds, [Mo12(V)O28(µ(2)­OH)10(µ(3)­OH)2{M(II)(H2O)3}4]·nH2O ({M4(II)Mo12(V)}, M = Ni, Co), exhibits magnetic-field-dependent optical response in their electronic absorption spectra in the 0­33 T range. On the basis of Effective Hamiltonian Crystal Field calculations, we find that the observed field-induced decrease in reflectance of these compounds can be related to the formally spin-forbidden on-site d­d excitations. We tentatively position the observed effect among other known magneto-optical effects and predict that similar features may be found for other {M49(II)Mo12(V)} analogues.

11.
J Nanosci Nanotechnol ; 14(4): 2752-71, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24734688

RESUMO

A coupled molecular dynamics (MD)-stochastic simulation based model has been proposed here for the thermal conductivity of ethylene glycol (EG) based copper nanofluid. The model is based on the thermal evolution of the nanoparticles dispersed in the nanofluid which is in contact with a heat source. It is natural that the nanoparticles dispersed in the nanofluid would move randomly by Brownian motion and repeatedly collide with the heat source. During each collision the nanoparticles would extract some heat by conduction mode from the heat source and this heat would be dissipated to the base fluid during Brownian motion by a combination of conduction and microconvection mode. Thus, in addition to normal conductive heat transfer through the base fluid (EG) itself (without nanoparticles) some amount of heat is transferred by the collision of the nanoparticles with the heat source. The extent of this additional heat transfer has been estimated in the present model to estimate the enhancement in thermal conductivity of EG based copper nanofluid, as a function of volume fraction loading of nanoparticles. The prediction of the present model has been compared with the experimental data available in literature, and it has shown a reasonable agreement between the theoretical prediction and the experimental data.

12.
Indian J Biochem Biophys ; 51(1): 75-80, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24791420

RESUMO

Drought-tolerant cultivars and their phytochemical composition, which has a role in providing drought tolerance are gaining importance. In this study, rice bran oil and semi-purified oryzanol (SPO) obtained from five rice (Oryza sativa L.) cultivars, namely P1401 and PB1 (drought-susceptible) and N22, PNR381 and APO (drought-tolerant) were analyzed for the gamma-oryzanol content, an antioxidant present in considerable amount in the rice bran. The higher level of gamma-oryzanol and its antioxidant activity was observed in drought-tolerant cultivars (N22, PNR381 and APO) as compared to drought-susceptible (PB1 and P1401), suggesting the role of gamma-oryzanol in drought tolerance, as antioxidants are known to play an important role by scavenging free radicals. The total antioxidant activity of gamma-oryzanol might be attributed to 24-methylene cycloartanyl ferulate, a major component of gamma-oryzanol. By enhancing the level of active oryzanol components identified in this study by genetic and molecular means could impart increased drought tolerance.


Assuntos
Secas , Oryza/fisiologia , Fenilpropionatos/metabolismo , Antioxidantes/metabolismo , Oryza/citologia , Oryza/metabolismo , Fenilpropionatos/isolamento & purificação , Óleos de Plantas/metabolismo
13.
Funct Integr Genomics ; 13(1): 43-55, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23086594

RESUMO

In silico analysis followed by experimental validation leads us to propose that the predicted protein All0195 of Anabaena sp. PCC7120 showing enhanced expression under sodium arsenate (Na2HAsO4) stress belongs to the thioredoxin superfamily with structural similarity to bacterial arsenate reductase. The All0195 protein demonstrated C-X-TC-X-K, NTSG-X2-YR, and D-X2-L-X-KRP as functional motifs that show similarity to seven known bacterial arsenate reductase family protein homologs with Cys, Arg, and Pro as conserved residues. In view of physicochemical properties, such as aliphatic index, ratio of Glu + Lys to Gln + His, and secondary structure, it was evident that All0195 was also a thermostable protein. The predicted three-dimensional structure on molecular docking with arsenate oxyanion ([Formula: see text]) revealed its interaction with conserved Cys residue as also known for other bacterial arsenate reductase. In silico derived properties were experimentally attested by cloning and heterologous expression of all0195. Furthermore, this protein functionally complemented the arsenate reductase-deficient sodium arsenate-hypersensitive phenotype of Escherichia coli strainWC3110 (ΔarsC) and depicted arsenate reductase activity on purification. In view of the above properties, All0195 appears to be a new arsenate reductase involved in arsenic detoxification in Anabaena sp. PCC7120.


Assuntos
Anabaena/enzimologia , Arseniato Redutases/metabolismo , Arseniatos/toxicidade , Proteínas de Bactérias/metabolismo , Motivos de Aminoácidos , Sequência de Aminoácidos , Anabaena/genética , Arseniato Redutases/química , Arseniato Redutases/genética , Proteínas de Bactérias/química , Proteínas de Bactérias/genética , Domínio Catalítico , Sequência Conservada , Modelos Moleculares , Dados de Sequência Molecular , Mutação , Estrutura Terciária de Proteína
14.
Indian J Biochem Biophys ; 50(6): 537-47, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24772979

RESUMO

Phytic acid, the major storage form of phosphorus in plant seeds is degraded by the phytases to yield inositol and free phosphate, contributing thereby to the improved bioavailability of phytate phosphorus and essential minerals in plant foods and simultaneous reduction in phosphorus pollution of the terrestrial and aquatic ecosystems. As a possible strategy for altering seed phytate levels, the approach involving reduction of phytate content by ectopically expressing endogenous phytase gene during seed development of soybean (Glycine max L. cv. Pusa-20) was attempted in the present study. Semi-quantitative RT-PCR revealed the maximum expression of phytase gene transcripts in germinating cotyledons (approximately 10 days after germinations), compared to other vegetative tissues. A full-length phytase cDNA was amplified from the germinating seedlings by splicing by overlap extension (SOE)-PCR and its sequence analysis revealed an open-reading-frame of 1644 bp, including an N terminal signal peptide of 28 amino acids. Predicted amino acid sequence (547-aa) of molecular mass 62 kDa on alignment with related purple acid phosphatases in other plants shared five conserved domains and seven invariant amino acids involved in coordination of the metals in the binuclear center of purple acid phosphatases. Owing to a large number of E. coli low-usage codons in soybean phytase gene, the modified gene was cloned into a prokaryotic expression vector pET-28a (+) and its expression in E. coli was confirmed by SDS-PAGE and Western blot analysis. Bioassay of the crude expression product in E. coli revealed a functional phytase gene, showing a great potential for developing low phytate transgenic soybean through its seed-specific overexpression in the early stages of seed development.


Assuntos
6-Fitase/genética , Códon/genética , Escherichia coli/genética , Engenharia Genética/métodos , Glycine max/enzimologia , Glycine max/genética , 6-Fitase/biossíntese , 6-Fitase/química , Sequência de Aminoácidos , Clonagem Molecular , DNA Complementar/genética , Expressão Gênica , Regulação da Expressão Gênica de Plantas , Minerais/metabolismo , Dados de Sequência Molecular , Especificidade de Órgãos , Fósforo/metabolismo , Filogenia , Plântula/genética , Homologia de Sequência , Glycine max/metabolismo
15.
East Mediterr Health J ; 19(9): 826-31, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24313047

RESUMO

Afghanistan's maternal and child mortality rates are among the highest in the world. The country faces challenges to meet the Millennium Development Goals set for 2015 which can be attributed to multiple causes related to accessibility, affordability and availability of health-care services. This report addresses the challenges in strengthening maternal and child health care in Afghanistan, as well discussing the areas to be prioritized. In order to ensure sound maternal and child health care in Afghanistan, policy-makers must prioritize monitoring and surveillance systems, integrating maternal and child health care with rights-based family planning methods, building human resources, offering incentives (such as the provision of a conditional cash transfer to women) and promoting action-oriented, community-based interventions. On a wider scale, the focus must be to improve the health infrastructure, organizing international collaboration and expanding sources of funding.


Assuntos
Serviços de Saúde da Criança/organização & administração , Acessibilidade aos Serviços de Saúde/organização & administração , Serviços de Saúde Materna/organização & administração , Afeganistão/epidemiologia , Criança , Serviços de Planejamento Familiar/organização & administração , Feminino , Prioridades em Saúde/organização & administração , Mão de Obra em Saúde , Direitos Humanos , Humanos , Política , Pobreza , Vigilância de Evento Sentinela
16.
Kathmandu Univ Med J (KUMJ) ; 10(38): 18-22, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23132469

RESUMO

BACKGROUND: Urethral catheterization is done as a routine procedure in cesarean section. It is associated with high incidence of urinary tract infections, discomfort, delayed ambulation and longer hospital stay. OBJECTIVE: To determine the feasibility and safety of cesarean section without urethral catheterization. METHODS: A prospective, randomized controlled trial was carried out from April 2008 to March 2009, in the Department of Obstetrics and Gynecology, B. P. Koirala Institute of Health Sciences. Among 150 patients who had undergone cesarean section 75 were catheterized and 75 were uncatheterized. RESULTS: First void discomfort was significantly associated with the use of indwelling catheter (OR 6.95, CI 95 %, 3.74 to 12.95; P less than 0.001).Significant number of patients with indwelling catheter had signs and symptoms of urinary tract infection (OR 6,CI 95%, 2.59 to 13. 86; P less than 0.001). Positive urinalysis for urinary tract infection was high in catheterized group (P less than 0.001). Hospital stay was shorter in patients without catheter (p less than 0.05). None of the patients had bladder injury. There were no significant differences in duration of surgery and ambulation time between two groups of patients. CONCLUSIONS: Cesarean section can be done safely without urethral catheterization with reduced morbidities.


Assuntos
Cesárea/métodos , Cateterismo , Cateteres de Demora , Feminino , Humanos , Tempo de Internação , Gravidez , Estudos Prospectivos , Uretra , Infecções Urinárias/etiologia
17.
Artigo em Zh | MEDLINE | ID: mdl-35610673

RESUMO

Objective: To investigate the oncological and functional efficacy and safety of transoral robotic surgery (TORS) in the treatment of oropharyngeal carcinoma. Methods: Twenty-six patients with oropharyngeal cancer were enrolled who underwent TORS at Beijing United Hospital from June 1, 2017 to December 31, 2020. Among them, 22 patients were males and 4 were females, aged 39 to 76 years old. T1-2 patients accounted for 88.5% (23/26). Clinicopathological data including the time of removal of gastric and endotracheal tube were collected. The SPSS software package was used for survival analysis, and the overall survival rate and disease-free survival rate were calculated. Results: All the 26 patients with oropharyngeal cancer received TORS without conversion to open surgery, and 20 of them underwent simultaneous cervical lymph node dissection. TORS operation time ranged from 65 to 360 minutes with an average of 215 minutes. Intraoperative blood loss ranged from 5 to 600 ml with an average of 70 ml. Four patients (15.4%) underwent tracheotomy, of whom 3 patients had the removals of tracheal tubes within 1 month after surgery and 1 case remained to wear a tube by the end of follow-up. Twelve patients (46.2%) underwent gastric tube implantation, among them, 11 patients had removals of gastric tubes within 1 month after surgery and 1 patient died of oropharyngeal hemorrhage 13 days after operation. One patient (3.8%) had a positive surgical margin and others had pathologically negative surgical margins. Sixteen patients (61.5%) received postoperative radiotherapy, of whom 11 patients (42.3%) received platinum-based concurrent chemotherapy. The median follow-up time was 21.5 months (0.4 to 45 months). The overall survival and the disease-free survival rates were 83.0% and 75.8%, respectively. Conclusion: The application of TORS in treatment of oropharyngeal cancer can achieve good oncological and functional outcomes in selected patients.


Assuntos
Carcinoma , Neoplasias Orofaríngeas , Procedimentos Cirúrgicos Robóticos , Adulto , Idoso , Carcinoma/cirurgia , Feminino , Humanos , Masculino , Margens de Excisão , Pessoa de Meia-Idade , Esvaziamento Cervical , Neoplasias Orofaríngeas/cirurgia , Resultado do Tratamento
18.
Musculoskelet Surg ; 106(4): 385-395, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34037925

RESUMO

STUDY OBJECTIVE: Due to the rarity of the Andersson lesion (AL), the literature is ambiguous regarding the type of surgical fixation, need for debridement and deformity correction. The purpose of this retrospective study is to evaluate the efficacy, feasibility and functional outcome of posterior fixation in AL. MATERIALS AND METHODS: This study included 35 patients having thoracolumbar AL operated for in situ fixation and fusion with minimum of 24-month follow-up. VAS (Visual Analogue Score) back pain, ODI (Oswestry Disability Index), Frankel's grade were compared and analyzed. Union status was noted with complications. RESULTS: The mean age of 35 patients was 56.34(± 11.3) years with average follow-up of 51.49 months. Two patients had AL at two levels. 27/37 AL were at discal level. Average estimated blood loss (EBL) was 276.43 ml and duration of surgery was 130.43 min. On an average, operated segments needed 7.77 screws. There were ten minor complications without long-term sequel. Neurological improvement was noted in 30 patients. Average preoperative VAS score improved from 8.69 to 3.14, ODI score improved from 68.76 to 18.77 at final follow-up which were significant (p < 0.05). There was significant improvement in Frankel's grading (Z = - 4.354, P = 0.00). CONCLUSIONS: Surgical management of AL by posterior approach and posterior stabilization can give satisfactory results without the need of extensive anterior reconstruction, bone grafting or deformity correction procedures without added morbidity and complications.


Assuntos
Fusão Vertebral , Vértebras Torácicas , Humanos , Adulto , Vértebras Torácicas/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Transplante Ósseo , Vértebras Lombares/cirurgia
19.
Clin Oncol (R Coll Radiol) ; 34(9): 561-570, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35738953

RESUMO

AIMS: To evaluate diffusion-weighted imaging and dynamic contrast-enhanced magnetic resonance imaging for the prediction of disease-free survival (DFS) in patients with locally advanced rectal cancer. MATERIALS AND METHODS: Patients with stage II or III rectal adenocarcinoma undergoing neoadjuvant chemoradiotherapy (CRT) and surgery were eligible. Patients underwent multi-parametric magnetic resonance imaging (diffusion-weighted imaging and dynamic contrast-enhanced) before CRT, during CRT (week 3) and after CRT (1 week prior to surgery). Whole tumour apparent diffusion coefficient (ADC) and Ktrans histogram quantiles (10th, 25th, 50th, 75th, 90th) were extracted for analysis. The associations between ADC and Ktrans at three timepoints with time to relapse were analysed as a continuous variable using a Cox proportional hazard model. RESULTS: Thirty-three patients were included in this analysis. The median follow-up was 4.4 years. No patient had locoregional relapse. Nine patients developed distant metastases. The hazard ratios for after CRT Ktrans 10th (P = 0.035), 25th (P = 0.048), 50th (P = 0.046) and 75th (P = 0.045) quantiles were statistically significant for DFS. The best Ktrans cut-off point after CRT for predicting relapse was 28 × 10-3 mL/g/min (10th quantile), with a higher Ktrans value predicting distant relapse. The 4-year DFS probability was 0.93 for patients with after CRT Ktrans value ≤28 × 10-3 mL/g/min versus 0.45 for patients with after CRT Ktrans value >28 × 10-3 mL/g/min. ADC was not able to predict DFS. CONCLUSIONS: Patients with higher Ktrans values after CRT (before surgery) in a histogram analysis of whole tumour heterogeneity had a significantly lower 4-year distant DFS and could be considered for more intense systemic therapy.


Assuntos
Quimiorradioterapia , Neoplasias Retais , Quimiorradioterapia/métodos , Intervalo Livre de Doença , Humanos , Imageamento por Ressonância Magnética/métodos , Terapia Neoadjuvante , Recidiva Local de Neoplasia/diagnóstico por imagem , Perfusão , Neoplasias Retais/diagnóstico por imagem , Neoplasias Retais/patologia , Neoplasias Retais/terapia , Estudos Retrospectivos , Resultado do Tratamento
20.
J Fluoresc ; 21(3): 1255-63, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21240627

RESUMO

The complex of o-phenylenediamine (o-PDA) and benzoin (BN) was synthesized adopting solid state reaction by mixing of their melt together followed by chilling. The phase diagram study shows the formation of a complex in 1:1 molar ratio with congruent melting point and two eutectics lying on either side of complex. The formation of complex was confirmed using the FTIR, NMR, mass spectroscopy, powder XRD and DSC studies. The optical properties of the parent component, their complex and few other compositions nearby the complex were studied using absorption and laser luminescence techniques. The significantly higher green/yellow emission was noted with newly synthesized complex as compared to that of their parents as well as other compositions of o- PDA and BN.

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