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1.
Heliyon ; 7(1): e06091, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33553756

RESUMEN

In this research work, we propose macronutrients incorporated slow-release based nano-fertilizer using nanozeolite as a carrier. A simple chemical approach was used to synthesis the proposed nanozeolite composite fertilizer (NZCF). To gain an insight into the properties, morphology and structure of the synthesized NZCF, it was further characterized by different techniques such as powder XRD, FT-IR, SEM, and TG/DTA. A considerable enhancement of the quality and the water retention capacity of the soil was observed as a result of applying the proposed NZCF when compared with a commercial fertilizer. Furthermore, the swelling ratio and the equilibrium water content of NZCF were compared to the commercial fertilizer and their effect on plant growth was observed. Slow-release studies were carried out for both NZCF and the commercial fertilizer. The results of these studies reveled that NZCF possessed a long-term release pattern of the macronutrients and that showed a great potential for promoting plant growth. Hence, the prepared nanocomposite fertilizer can be safely used as an environment-friendly source of nutrients to enhance plant growth.

2.
Plant Biol (Stuttg) ; 20(3): 610-618, 2018 May.
Artículo en Inglés | MEDLINE | ID: mdl-29450953

RESUMEN

Successful germination and seedling emergence in new environments are crucial first steps in the life history of global plant invaders and thus play a key role in processes of range expansion. We examined the germination and seedling emergence success of three global plant invaders - Lupinus polyphyllus, Senecio inaequidens and Verbascum thapsus - in greenhouses and climate chambers under climate regimes corresponding to seven eco-regions. Seed materials were collected from one non-native population for L. polyphyllus and S. inaequidens, and from 12 populations for V. thapsus (six natives and six non-natives). Experimental climates had significant effects on species responses. No species germinated in the dry (humidity ≤ 50%) and cool (≤ 5 °C) experimental climates. But all species germinated and emerged in two moderately cool (12-19 °C) and in three warm (24-27 °C) experimental climates. In general, V. thapsus showed higher fitness than S. inaequidens and L. polyphyllus. The climate of the seed source region influenced responses of native and non-native populations of V. thapsus. Non-native populations of V. thapsus, originating from the warmer seed source, showed higher performance in warm experimental climates and lower performance in moderately cool experimental climates compared to native populations. Responses of V. thapsus populations were also related to precipitation of the seed source region in moderately dry experimental climates. The warm, semi-arid and humid experimental climates are suitable for the crucial first steps of invasion success for L. polyphyllus, S. inaequidens and V. thapsus. The species adaptation to its source region modified the responses of our studied plants under different experimental climates representing major eco-regions of the world.


Asunto(s)
Especies Introducidas , Lupinus/crecimiento & desarrollo , Plantones/crecimiento & desarrollo , Senecio/crecimiento & desarrollo , Verbascum/crecimiento & desarrollo , Ecosistema , Humedad , Semillas/crecimiento & desarrollo , Temperatura
3.
Colorectal Dis ; 17(11): 943-53, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25808496

RESUMEN

AIM: Circumferential resection margin involvement (R1) in rectal cancer is a predictive factor for poor prognosis. The aim of this study was to confirm the prognostic significance of R1 in colon cancer resection and to establish whether the introduction of laparoscopic colorectal surgery influenced this. METHOD: Prospectively collected data on a patient pathway data manager for sequential patients with colon cancer treated at our specialist unit from January 2005 to December 2010 were analysed. There were 1110 colonic resections (elective 865; emergency 245). A circumferential resection margin involvement of < 1 mm was considered positive. RESULTS: The total R1 rate was 13.3% (elective 10.4%; emergency 23.6%; P < 0.001). Other statistically significant risk factors for an R1 resection included tumour perforation (P < 0.001), poorly differentiated carcinoma (P < 0.001), T4 tumour (P < 0.001), vascular invasion (P < 0.001), lymph node metastasis (P < 0.001), distant metastasis (P < 0.001) and palliative resection (P < 0.001). Over half of the elective resections were undertaken laparoscopically (486/865; 56.2%). When compared with elective open resection (379/865; 43.8%), the R1 rate was similar (P = 0.491) with similar disease-free survival (DFS) and overall survival (OS). The overall relapse rate was 18.9% in R0 and 55.5% in R1 resections (P < 0.001). Kaplan-Meier survival analysis showed significant improvements in DFS and OS in R0 over R1 patients. CONCLUSION: The R1 margin in colon cancer resection is an important marker for advanced disease and a prognostic factor for DFS and OS. The introduction of laparoscopic surgery has not influenced the outcome in our unit despite a complex case mix.


Asunto(s)
Colectomía/métodos , Neoplasias del Colon/cirugía , Estadificación de Neoplasias , Anciano , Neoplasias del Colon/diagnóstico , Neoplasias del Colon/mortalidad , Supervivencia sin Enfermedad , Femenino , Estudios de Seguimiento , Humanos , Estimación de Kaplan-Meier , Masculino , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia/tendencias , Reino Unido/epidemiología
4.
Asian-Australas J Anim Sci ; 27(6): 886-97, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25050028

RESUMEN

The aim of the present study was to get a total physical and chemical characterization and comparison of the principal components in Bangladeshi buffalo (B), Holstein cross (HX), Indigenous cattle (IC) and Red Chittagong Cattle (RCC) milk. Protein and casein (CN) composition and type, casein micellar size (CMS), naturally occurring peptides, free amino acids, fat, milk fat globule size (MFGS), fatty acid composition, carbohydrates, total and individual minerals were analyzed. These components are related to technological and nutritional properties of milk. Consequently, they are important for the dairy industry and in the animal feeding and breeding strategies. Considerable variation in most of the principal components of milk were observed among the animals. The milk of RCC and IC contained higher protein, CN, ß-CN, whey protein, lactose, total mineral and P. They were more or less similar in most of the all other components. The B milk was found higher in CN number, in the content of αs2-, κ-CN and α-lactalbumin, free amino acids, unsaturated fatty acids, Ca and Ca:P. The B milk was also lower in ß-lactoglobulin content and had the largest CMS and MFGS. Proportion of CN to whey protein was lower in HX milk and this milk was found higher in ß-lactoglobulin and naturally occuring peptides. Considering the results obtained including the ratio of αs1-, αs2-, ß- and κ-CN, B and RCC milk showed best data both from nutritional and technological aspects.

5.
Ann R Coll Surg Engl ; 93(6): e81-2, 2011 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21929892

RESUMEN

Intussusception through loop ileostomy is rare and must be treated without delay to avoid further complications. Retrograde intussusception is even rarer. We report a case of small bowel obstruction caused by retrograde intussusception through the distal limb of loop ileostomy in a male patient. A literature search is also carried out regarding this entity and published reports are discussed.


Asunto(s)
Enfermedades del Íleon/etiología , Ileostomía , Intususcepción/etiología , Complicaciones Posoperatorias/etiología , Adenocarcinoma/cirugía , Anciano , Humanos , Masculino , Neoplasias del Recto/cirugía
6.
Ann R Coll Surg Engl ; 89(2): W9-11, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-17346391

RESUMEN

Methylene blue (5 mg/kg) is routinely given at our institution during parathyroidectomy. The dye stains the parathyroid glands and helps in better surgical visualisation. The technique is generally considered to be safe except for causing pseudo-cyanosis. We report a case of a patient who had confusion, agitation and altered mental status during the early postoperative course probably secondary to methylene blue infusion.


Asunto(s)
Colorantes/efectos adversos , Azul de Metileno/efectos adversos , Paratiroidectomía , Psicosis Inducidas por Sustancias/etiología , Anciano , Confusión/inducido químicamente , Femenino , Humanos , Hiperparatiroidismo/cirugía , Agitación Psicomotora/etiología
7.
Pak J Pharm Sci ; 15(1): 35-42, 2002 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-16414866

RESUMEN

In order to determine the ultimate quality of any formulated dosage form and rationalize the therapeutic plan as well as to individualize the prescription, in vivo measurement of drug is the modem and specialized expertise of the clinical/research area of pharmacy practice, which provides effectiveness and assures the safety of drugs. All pharmacological, therapeutic or toxic responses are subject to reaching of drug at the site of action through connective tissue. Other than physico chemical properties of drug, there are numerous factors from manufacturing process to biochemical behaviour of the individual which resist in the absorption, distribution, metabolism and elimination of drugs in the biological system. Bezafibrate Tablet 200 mg (Lipocor) an oral conventional formulation manufactured by Efroze Chemical Industries (Pvt.) Ltd. was investigated for bioavailability followed by pharmacokinetic studies on adult, male, healthy, human local population. For this purpose, a sensitive, specific and validated method was used for the estimation of bezafibrate in blood. HPLC was performed on a reversed phase C18 column (flow rate 1.5 ml/min, UV = 230 nm) with 0.02 M buffer of KH2PO4 (Adjusted pH 3.5 with Phosphoric Acid) and Methanol (40: 60) whereas extraction of the drug from the plasma was carried out by deproteinization of plasma according to classical method described in previous studies (Obaid A. et al., 1999). Peak level (Tmax) of Bezafibrate Tablet 200 mg (Lipocor) was observed at about 1.42 +/- 0.53 hours after the dose and practically free Bezafibrate Tablet 200 mg (Lipocor) could be detected in blood after 9 hours. Cmax of the investigated formulation of Lipocor register mark or target was 1732 +/- 374.2 ng/ml. Area under curve (AUC) was 5198.65 +/- 1231.8 ng. hr/ml.

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