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Search Results: 1 - 10 of 2704 matches for " inorganic phosphate "
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Annual changes in serum calcium and inorganic phosphate levels and correlation with gonadal status of a freshwater murrel, Channa punctatus (Bloch)
Srivastav, S.K.;Srivastav, A.K.;
Brazilian Journal of Medical and Biological Research , 1998, DOI: 10.1590/S0100-879X1998000800006
Abstract: adult channa punctatus murrels of both sexes (60-80 g) were collected locally from ramgarh lake during the second week of every month (10 individuals of each sex/month) throughout the year. blood samples were collected and analyzed for serum calcium and phosphate levels by the methods of trinder (1960) and fiske and subbarow (1925), respectively. gonads were fixed to judge the state of maturation of the fish. males exhibited no change in serum calcium levels throughout the year in correlation with testicular maturation. however, serum phosphate levels exhibited a rise in correlation with the increased gonadosomatic index. females showed marked seasonal changes in serum calcium and phosphate levels which were associated with ovarian maturation (vitellogenesis).
Effect of different 1% chlorhexidine varnish regimens on biochemical composition of the dental biofilm
Ribeiro, Luciana Gazaniga Maia;Maltz, Marisa;Hashizume, Lina Naomi;
Revista Odonto Ciência , 2011, DOI: 10.1590/S1980-65232011000100008
Abstract: purpose: this investigation evaluated in a randomized controlled study the effect of different 1% chlorhexidine varnish (1%chx-v) regimens on biochemical composition of the dental biofilm. methods: subjects with mutans streptococci > 105 cfu/ml saliva, were allocated into 4 groups: a - single 1% chx-v application; b - 1% chx-v was applied once daily on 3 consecutive days; c - 1% chx-v was applied 3 times with an interval of 4 days between each application; and d - placebo varnish was applied once daily on 3 consecutive days. dental biofilm samples were collected at baseline and 1, 4, and 8 weeks after the final varnish application and evaluated for inorganic phosphate and insoluble polysaccharide concentrations. results: no difference was observed between all groups during the different experimental periods in relation to biochemical composition. after 1 week, a significant increase was observed in inorganic phosphate concentration, returning to baseline values after 4 weeks. all groups showed a significant decrease in insoluble polysaccharide concentration for more than 8 weeks after treatment. conclusion: varnish application resulted in modification of the dental biofilm toward a less cariogenic one.
Disturbance of inorganic phosphate metabolism in diabetes mellitus: temporary therapeutic intervention trials
J rn Ditzel, Hans Henrik Lervang
Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy , 2009, DOI: http://dx.doi.org/10.2147/DMSO.S6338
Abstract: turbance of inorganic phosphate metabolism in diabetes mellitus: temporary therapeutic intervention trials Mini-review (5994) Total Article Views Authors: J rn Ditzel, Hans Henrik Lervang Published Date October 2009 Volume 2009:2 Pages 173 - 177 DOI: http://dx.doi.org/10.2147/DMSO.S6338 J rn Ditzel, Hans Henrik Lervang Department of Endocrinology, and Center for Prevention of Struma and Metabolic Diseases, Aalborg University Hospital, Aarhus University, Denmark Abstract: A paradoxical metabolic imbalance in inorganic phosphate occurs from the early onset of diabetes and may lead to a reduction of high energy phosphates and tissue hypoxia. These changes take place in the cells and tissues in which the entry of glucose is not controlled by insulin, and particularly in poorly regulated diabetes patients in whom long-term vascular complications are more likely to occur. Several therapeutic intervention trials have been carried out, including assessment of optimal glucose regulation, the effect of dietary inclusion of calcium diphosphate and pharmaceutical intake of etidronate disodium (EHDP), but none of these modalities wholly overcome the problem. The potential therapeutic application of fructose-1, 6-diphosphate, however, which also acts as human bioenergy, holds a great deal of promise as an efficacious and well-tolerated therapeutic regimen.
Relation between photorespiration and photoinhibitionin cotton leaves

科学通报(英文版) , 1996,
Abstract:
Annual changes in serum calcium and inorganic phosphate levels and correlation with gonadal status of a freshwater murrel, Channa punctatus (Bloch)
Srivastav S.K.,Srivastav A.K.
Brazilian Journal of Medical and Biological Research , 1998,
Abstract: Adult Channa punctatus murrels of both sexes (60-80 g) were collected locally from Ramgarh Lake during the second week of every month (10 individuals of each sex/month) throughout the year. Blood samples were collected and analyzed for serum calcium and phosphate levels by the methods of Trinder (1960) and Fiske and Subbarow (1925), respectively. Gonads were fixed to judge the state of maturation of the fish. Males exhibited no change in serum calcium levels throughout the year in correlation with testicular maturation. However, serum phosphate levels exhibited a rise in correlation with the increased gonadosomatic index. Females showed marked seasonal changes in serum calcium and phosphate levels which were associated with ovarian maturation (vitellogenesis).
Feasibility of Rock Phosphate and Other Amendments in Preventing P Deficiency in Barley on a P-Deficient Soil in Northeastern Saskatchewan  [PDF]
Sukhdev S. Malhi, Cecil L. Vera, Stewart A. Brandt
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.514160
Abstract: In the Canadian Prairies, many soils on organic farms are low in available P, and the only alternative is to use external sources to prevent P nutrient deficiency on these soils. A 3-year (2012 to 2014) field experiment was established in spring 2012 on a P-deficient soil near Kelvington, Saskatchewan, Canada, to determine the potential of organic amendments (alfalfa pellets, compost manure, thin stillage and distiller grain dry of wheat), inorganic amendments (rock phosphate granular, rock phosphate fine, wood ash and bone meal ash) and microbial inoculants/products (JumpStart® and MYKE®PRO), applied alone or in a combination with N and/or P commercial fertilizers, in preventing P deficiency and increasing seed yield, N and P uptake of barley. Compared to unfertilized control, N only treatment did not result in any significant increase in seed yield, while application of P alone increased seed yield significantly but to a lesser degree than when both N and P fertilizers were applied together in all 3 years. Rock phosphate did not result in any seed yield benefit, even when applied along with N fertilizer. Wood ash fine increased seed yield of barley significantly only in the presence of N fertilizer, with highest seed yield in the presence of both N + P fertilizers. Seed yield of barley increased moderately with alfalfa pellets, significantly with compost manure, and considerably with distiller grain dry of wheat, but highest seed yield was obtained from thin stillage, which was essentially similar to that obtained from the N + P fertilizer combination. There was no yield benefit from JumpStart or MykePro in any year and only slight benefit from bone meal ash in 2013. The addition of N fertilizer to MykePro or bone meal ash treatments increased seed yield, but highest yield was obtained when both N and P fertilizers were added, suggesting a lack of available P for optimum seed yield. With few exceptions, the response trends of total N and P uptake in seed + straw
海分枝杆菌ppk基因的生物学功能研究
祝琳,施旭骏,高谦△
- , 2016,
Abstract:
Objective To construct the ppk mutant in Mycobacterium marinum ( M. marinum) and to investigate its role in the physiology. Methods The ppk mutant in M.marinum was constructed by homologous recombination. Intracellular poly inorganic phosphate (poly-Pi) concentration was measured in cell suspensions by using a DAPI-based fluorescence approach. Then in vitro bacterial viability of ppk mutant type and the wild type strain was compared under different stress conditions. Furthermore, in vivo mycobacterial virulence was checked by infecting the adult zebrafish with mutant and wild type strain. And the intracellular growth ability was investigated by infection of the murine macrophage cell line RAW267.4. Results The intracellular poly-Pi concentration of M. marinum was significantly decreased after the deletion of ppk gene. In addition, the ppk mutant displayed attenuated phenotype in the zebrafish model. In mice-derived macrophage cell line, the cell proliferation of ppk mutant type declined significantly compared with wild type. Moreover, the ppk mutant type was more sensitive to nutrient starvation and antibiotic treatment, including rifampicin and levo-floxacin. Conclusions These results indicate that ppk is involved in stress response and required for mycobacterial virulence.
Efeito do alumínio sobre a absor??o, o acúmulo e o fracionamento do fósforo em sorgo
Pereira, Jamil Morais;Cambraia, José;Fonseca Júnior, élcio Meira da;Ribeiro, Cleberson;
Bragantia , 2008, DOI: 10.1590/S0006-87052008000400019
Abstract: the objective of this work was to evaluate al effect on uptake, accumulation and fractionation of p in two sorghum cultivars. plants were treated with toxic levels of al during ten days and then they were harvested and growth, dry matter yield, al and total p contents and concentrations of the various p forms in the two parts of the plants were determined. aluminum effect on p uptake was also evaluated in intact plants. aluminum reduced the growth of the seminal root and dry matter yield in roots and tops of both cultivars, especially in the sensitive one. aluminum and p contents increased in roots but did not change in the top of both cultivars. phosphate uptake by roots, however, decreased in the presence of al in both cultivars, especially in the sensitive one. aluminum, in general, changed concentrations of all soluble (pi e porg) and insoluble p forms (prna e presidual), except of the plip form. some of these modifications seem to be important and may be related to al tolerance mechanism in sorghum.
URINARY TRACT STONE DISEASE
MUHAMMAD ISHAQ,ISRAR AHMED AKHUND
The Professional Medical Journal , 2011,
Abstract: Geographical variation in the rates of kidney stones has been observed for many years. Pakistan is situatedin stone belt. Calculus diseases is endemic in Pakistan, perhaps the incidence in Pakistan is highest in the world. Purpose: To evaluate etiologyand biochemical risk factors (inorganic phosphate) in the Peshawar. Subjects & Methods: Study was conducted at LHR and HayatabadHospitals of Peshawar for the period of nine months. Two hundred patients and same number of controls were selected. Results: The meanvalue of mean inorganic phosphate in non stone formers were less than that of stone formers. The mean of urinary inorganic phosphateexcretion in stone formers was greater than that of non-stone formers. Conclusions: We conclude that inorganic phosphate is an independentrisk factor for renal stone formation.
Templated Formation of Hydroxyapatite Nanoparticles from Self-Assembled Nanogels Containing Tricarboxylate Groups
Yoshihiro Sasaki,Setsuko Yamane,Kei Kurosu,Shin-Ichi Sawada,Kazunari Akiyoshi
Polymers , 2012, DOI: 10.3390/polym4021056
Abstract: Nanosized hydroxyapatite (HAp) materials have received much attention in the context of their advanced biomedical applications, including tissue engineering and drug delivery systems. Hybridization of nanosized HAp with organic molecules is a promising approach to facilitate the preparation of HAp nanomaterials. Here, templated mineralization using self-assembled nanogels modified with tricarboxylate groups was performed to yield the hybrid HAp nanomaterial. In the pH gradient method, the nanogel acted as an excellent template for the formation of well-dispersed HAp particles. Transmission electron microscopy, selected area electron diffraction patterns and energy-dispersive X-ray spectroscopy of these particles revealed that amorphous nanoparticles of amorphous calcium phosphate formed first, followed by transformation to crystalline hydroxyapatite.
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