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Phosphorus is one of the most abundant chemical elements but has a low bioavailability index. Therefore, microrganisms play a fundamental role in providing insoluble phosphorus to plants. The objective of this study was to evaluate the capacity of bacteria to solubilize inorganic phosphates in soils with different fertilization histories. Soil and rhizosphere samples were collected from a Red Distroferric Latosol, including a control without mineral or organic fertilizer (C), treatment with mineral fertilizer (MF) according to the needs of each crop, and treatment with organic fertilizer [300 m3 ha-1 of swine wastewater (SW)]. The medium containing calcium phytate presented more colony-forming units (CFU) for all fertilization histories, and growth in treatments C and MF was 50% higher than treatment with SW. CFU values in soils treated with SW were lower than those in the other treatments, and the diversity of insoluble phosphate-solubilizing bacteria (PSB) was higher in treatment C. These results indicate a negative relationship between phosphorus concentrations and the number of PSB.
O fósforo é um dos elementos químicos mais abundantes, mas tem um baixo índice de biodisponibilidade. Portanto, micro-organismos desempenham um papel fundamental no fornecimento de fósforo insolúvel para as plantas. O objetivo deste trabalho é avaliar a capacidade das bactérias em solubilizar fosfatos inorgânicos em solos com diferentes históricos de fertilização. Amostras de solo e rizosfera foram coletadas de um Latossolo Vermelho Distroférrico, incluindo controle sem adubação mineral ou orgânica (C), tratamento com adubação mineral (MF) de acordo com as necessidades de cada cultura e tratamento com adubação orgânica [300 m3 ha-1 de águas residuárias da suinocultura (SW)]. O meio contendo fitato de cálcio apresentou mais unidades formadoras de colônias (UFC) para todas as histórias de fertilização, e o crescimento nos tratamentos C e MF foi 50% maior que o tratamento com SW. Os valores de CFU nos solos tratados com SW foram menores que nos demais tratamentos, e a diversidade de bactérias insolúveis solubilizadoras de fosfato (PSB) foi maior no tratamento C. Esses resultados indicam uma relação negativa entre as concentrações de fósforo e o número de PSB.
Assuntos
Fósforo , Plantas , Solo , BactériasRESUMO
La capacidad inmunoestimuladora de la mayoría de las vacunas es potenciada mediante la adsorción en adyuvantes que contienen aluminio. Variando las condiciones de adsorción (pH, tiempo de adsorción) cambia la cantidad de antígeno adsorbida y por lo tanto la capacidad de estimulación del sistema inmune. El Instituto Finlay de Vacunas investiga un nuevo candidato vacunal basado en vesículas de membrana externa de Salmonella Paratyphi A (VME-SPA). El objetivo de este trabajo fue determinar las condiciones de adsorción de las VME-SPA en dos adyuvantes de sales de aluminio (Al(OH)3 y AlPO4). Para ello, las VME-SPA fueron adsorbidas en ambos adyuvantes bajo diferentes condiciones de pH y tiempo. Mediante la construcción de una Isoterma de Langmuir se determinaron parámetros como la capacidad adsortiva (qm) y el coeficiente de adsorción (Kd). El lote de VME-SPA empleado estaba formado por poblaciones de nanoestructuras con un tamaño de partículas entre 60 y 100 nm. La adsorción de las VME-SPA en ambos adyuvantes, mostró valores ≥95 por ciento a pH neutro (6,5-7,0). Las VME-SPA en presencia de AlPO4 alcanzaron el estado de equilibrio en menor tiempo (99 por ciento a partir de 30 min) en comparación con Al(OH)3 (95 por ciento a partir de 3 h). Las isotermas evaluadas para ambos adyuvantes cumplieron con el modelo de Langmuir (R2≥0,99), con valores de qm y Kd diferentes entre los sistemas de adsorción. El estudio demostró que las VME-SPA se adsorbieron satisfactoriamente en ambos geles, proceso en el que están involucrados diferentes mecanismos de adsorción(AU)
The immunostimulation capacity of most vaccines is enhanced through antigen adsorption on aluminum adjuvants. The changes in adsorption conditions (pH, adsorption time), could change the amount of antigen adsorbed and therefore the ability to stimulate the immune system. The Finlay Institute of Vaccine researches a new vaccine candidate based on outer membrane vesicle from Salmonella Paratyphi A (OMV-SPA). The study aim was to determine adsorption condition of OMV-SPA with two aluminium adjuvants (Al(OH)3 and AlPO4). OMV-SPA was adsorbed in both adjuvants under differences conditions of pH and time. Parameters as adsorptive capacity (qm) and adsorption coefficient (Kd) were determined by construction of Langmuir Isotherm. The lot of OMV-SPA used is composed by population of nanostructure with a particle size between 60 and 100 nm. Adsorption of OMV-SPA in both adjuvants showed values ≥95 percent in neutral pH (6.5-7.0). OMV-SPA with AlPO4 got equilibrium state in less time (99 percent from 30 min) compared with Al(OH)3 (95 percent from 3 h). Isotherms from both adjuvants described Langmuir model (R2≥0.99), with qm and Kd values very different between adsorption systems. As conclusion, the study showed that OMV-SPA was adsorbed satisfactorily in both aluminium adjuvants, process in which are involved different adsorption mechanism(AU)
Assuntos
Vacinas contra Salmonella/imunologia , Hidróxido de Alumínio , VacinasRESUMO
Objective To evaluate the clinical significance of aluminum phosphate gel in the early preven-tion of gastrointestinal reactions caused by erythromycin , in order to obtain better clinical treatment for children. Methods The clinical data of 110 children with Mycoplasma pneumonia from January 1,2015 to December 31,2016 in the pediatric ward of Anhui Provincial Hospital were collected.According to the treatment methods ,the patients were divided into the observation group (60 cases) and the control group (50 cases).The observation group was mainly treated with erythromycin combined with aluminum phosphate gel ,some of which were given cephalosporin anti-infection,montelustra sodium to reduce airway hyperreaction ,hormone antiasthmatic,atomization inhalation and other supportive symptomatic treatment.The control group was mainly treated with erythromycin ,some of which were given cephalosporin anti-infection,montelustra sodium to reduce airway hyperreaction ,hormone antiasthmatic,atomi-zation inhalation and other supportive symptomatic treatment.The age,body weight,pre-hospital course,white blood cell count(WBC),CRP,alanine aminotransferase (ALT),creatinine(Cr),urea nitrogen (BUN),length of stay,sex, montruster sodium granules ,atomization,antibiotics, hormone use and gastrointestinal adverse reactions ( abdominal pain,vomiting, nausea, diarrhea, inappetence ) were compared between the two groups.Results A total of 110 children were selected,60 cases in the treatment groups ,including 38 males and 22 females,and the average age of children was (6.21 ± 2.26 ) years old.In the control group, there were 50 cases, including 23 males and 27 females,with an average age of (6.07 ±2.61)years.The age,weight,pre-hospital course,WBC,CRP,ALT,Cr, BUN,days of hospitalization ,etc.between the two groups had no statistically significant differences ( all P＞0.05). There were no statistically signifiant differences between the two groups in terms of sex ,montruster sodium particles, atomization,antibiotics,hormone use,etc.( all P＞0.05).The differences of abdominal pain ,vomiting,nausea and diarrhea between the two groups were not statistically significant (all P＞0.05).However,the difference of inappe-tence between the two groups was statistically significant ( P ＜0.05).The incidence rate of gastrointestinal side effects(abdominal pain,vomiting,nausea,diarrhea,inappetence ) of the observation group was 18.3 %(11／60 ), which of the control group was 48.0%(24／50),the difference was statistically significant between the two groups (χ2 ＝11.064,P＜0.05).Conclusion Aluminum phosphate gel can prevent gastrointestinal reactions induced by erythromycin in the treatment of Mycoplasma pneumonia ,so that children get better treatment.
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Objective@#To evaluate the clinical significance of aluminum phosphate gel in the early prevention of gastrointestinal reactions caused by erythromycin, in order to obtain better clinical treatment for children.@*Methods@#The clinical data of 110 children with Mycoplasma pneumonia from January 1, 2015 to December 31, 2016 in the pediatric ward of Anhui Provincial Hospital were collected.According to the treatment methods, the patients were divided into the observation group(60 cases) and the control group(50 cases). The observation group was mainly treated with erythromycin combined with aluminum phosphate gel, some of which were given cephalosporin anti-infection, montelustra sodium to reduce airway hyperreaction, hormone antiasthmatic, atomization inhalation and other supportive symptomatic treatment.The control group was mainly treated with erythromycin, some of which were given cephalosporin anti-infection, montelustra sodium to reduce airway hyperreaction, hormone antiasthmatic, atomization inhalation and other supportive symptomatic treatment.The age, body weight, pre-hospital course, white blood cell count(WBC), CRP, alanine aminotransferase(ALT), creatinine(Cr), urea nitrogen(BUN), length of stay, sex, montruster sodium granules, atomization, antibiotics, hormone use and gastrointestinal adverse reactions(abdominal pain, vomiting, nausea, diarrhea, inappetence) were compared between the two groups.@*Results@#A total of 110 children were selected, 60 cases in the treatment groups, including 38 males and 22 females, and the average age of children was (6.21 ± 2.26)years old.In the control group, there were 50 cases, including 23 males and 27 females, with an average age of (6.07 ± 2.61)years.The age, weight, pre-hospital course, WBC, CRP, ALT, Cr, BUN, days of hospitalization, etc.between the two groups had no statistically significant differences (all P>0.05). There were no statistically signifiant differences between the two groups in terms of sex, montruster sodium particles, atomization, antibiotics, hormone use, etc.(all P>0.05). The differences of abdominal pain, vomiting, nausea and diarrhea between the two groups were not statistically significant (all P>0.05). However, the difference of inappetence between the two groups was statistically significant (P<0.05). The incidence rate of gastrointestinal side effects(abdominal pain, vomiting, nausea, diarrhea, inappetence) of the observation group was 18.3 %(11/60), which of the control group was 48.0%(24/50), the difference was statistically significant between the two groups (χ2=11.064, P<0.05).@*Conclusion@#Aluminum phosphate gel can prevent gastrointestinal reactions induced by erythromycin in the treatment of Mycoplasma pneumonia, so that children get better treatment.
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Objective To study curative efficacy of aluminum phosphate gel combined with omeprazole in treatment of peptic ulcer and its effects on Gas, TGF-αlevels.Methods 80 patients of peptic ulcer who received therapy from April 2015 to April 2016 in our hospital were selected as research objects.According to random number table, those patients were divided into the observation group and the control group, 49 patients in each group.the control group was treated with omeprazole, while the observation group was treated with aluminum phosphate gel combined on the basis of control group.Then Transforming growth factor, adverse reaction and curative effect were compared.Results After treatment, the serum levels of Gas and TGF-αin both groups were improved (P<0.05); Two weeks after treatment,the level of GAS in the observation group were lower than those in the control group(P<0.05), TGF-αlevel was higher than that in control group(P<0.05); The total incidence of adverse reactions in the observation group was lower than that in the control group(P<0.05); The total effective rate in the observation group was higher than that in the control group(P<0.05). Conclusion Combined use of aluminum phosphate gel and omeprazole in the treatment of peptic ulcer can effectively improve the patient-related serum markers, improve the quality of ulcer healing, significant efficacy, high safety and low incidence of adverse reactions.
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AIM:To observe the preventive effects of aluminum phosphate gel and smectite powder on the side effects of erythromycin lactobionate via intervenous drop infusion for the gastrointestinal tract in children.METHODS:249 cases children with mycoplasmal pneumonia were randomly divided into three groups,aluminum phosphate gel group,smectite powder group and control group,83 cases in each group.The side effects of erythromycin lactobionate(abdominal pain,diarrhea,sicchasia,disgorging)for the gastrointestinal tract among three groups were observed.RESULTS:Compared with control group,the incidence rate of side effects was much lower in aluminum phosphate gel group and smectite powder group(P0.05).CONCLUSION:Aluminum phosphate gel and smectite powder significantly decrease the side effects of erythromycin lactobionate for the gastrointestinal tract in children,and especially the former,can be widely applied in pediatric clinic.