Long-term exposure to xenoestrogens alters some brain monoamines and both serum thyroid hormones and cortisol levels in adult male rats

AbstractThe present study was designed to examine the effect of long-term treatment with the phytoestrogen soy isoflavone [(SIF); 43mg/kg body weight/day] and/or the plastics component bisphenol-A [(BPA); 3mg/kg body weight/day] on some monoamines in the forebrain and both serum thyroid hormones and cortisol levels of adult rats. Significant increases in serotonin (5-HT) and norepinephrine (NE) level, and significant decreases in 5-hydroxyindoleacetic acid (5-HIAA) level and 5-HIAA/5-HT ratio, were observed after treatment with SIF or BPA. Level of dopamine (DA) was increased in SIF-treated group and decreased in BPA-treated group. Activity of monoamine oxidase (MAO) was decreased in all treated groups. The level of serum thyroid hormones (fT3 and fT4) was increased after treatment with SIF and decreased after exposure to BPA, while cortisol level was increased in all treated groups. It may be concluded that long-term exposure to SIF or BPA disrupts monoamine levels in the forebrain of adult rats through alteration in the metabolic pathways of amines and disorders of thyroid hormones and cortisol levels

Effects of chronic disease self – management program on quality of life and wellbeing among chronic ill adolescents at Majmaah university female Colleges, KSA.

Back ground Chronic disease Self- management program is an important issue in health today which emphasize patient role in decision making, care, minimize health cost and expenditure. Chronic illness represents challenging for adolescents and their families which need active patient participation and continuous medical care to overcome their complications and improve chronic illness prognosis. Aim This study aimed to assess effects of chronic disease self-management program on quality of life and wellbeing among chronic ill adolescents at Majmaah university female Colleges. Sample All diagnosed chronic ill adolescent at Majmaah University female Colleges under certain criteria were included in the study their number were 40. Setting The study was conducted at Majmaah university female Colleges, data were collected from 1st of November 2013 to the end of May 2014, data collected before the program, after program (immediately post) and at follow up (after 3months from the program). Results The present study revealed that chronic disease self- management program has a great impact in study subjects' knowledge; quality of life and wellbeing level with significant change were found post the program. Conclusion Chronic disease self-management program (CDSMP) represent a core component of chronic disease management which seek to empower adolescent to deal with the disease and live better quality of life with fewer restriction from their chronic illness

THERMOTOLERANCE OF Staphylococcus aureus AFTER SUBLETHAL HEAT SHOCK

The effect of prior heat shock on the thermotolerance of Staphylococcus aureus in broth culture and induction of heat shock proteins was investigated. S . aureus cell wall was, also, examined using Scanning Electron Microscope (SEM). Specific bacteria were grown at 37°C the optimum temperature (control), sublethally heated at 47, 52, 57 and 60°C for various times, and heat treated at 68°C were done. The estimated average of the D68-values for the control was 4.83 min while for heat shocked treatments ranged from 5.43 to 10.23 min. The current results, also, indicated that 8 - 16 new bands were induced by applying heat shock treatments with molecular weights ranged from 9 to 135 KDa. The induced heat shock proteins further confirmed the increased the thermotolerance. Moreover, selected heat shock treatments caused severe destruction in cell wall (i.e., rupture, irregular and leakage of cell contents), while heat shocked cells after incubating at 37°C for overnight in enriched medium became similar to that of the one’s normal. The enhanced heat resistance of S. aureus should be thought-about in cause of planning effective thermal processes to confirm the microbiological food safety

SENSITIVE SPECTROPHOTOMETRIC ASSAY OF MUSCARINIC RECEPTOR ANTAGONIST TOLTERODINE TARTRATE IN BULK DRUG AND PHARMACEUTICAL FORMULATIONS

Objective: Simple, sensitive, and accurate spectrophotometric methods have been developed for the assay of tolterodine tartrate (TOL) in bulk drugand pharmaceutical formulations.Methods: The proposed methods are based on oxidation reaction of TOL with a known excess of cerium(IV) ammonium sulfate as an oxidizing agentin acid medium followed by determination of unreacted oxidant by adding a fixed amount of dye, e.g., amaranth (AM), rhodamine 6G (Rh6G), andindigo carmine (IC) followed by measuring the absorbance at 520, 530, and 610 nm, respectively. The effect of experimental conditions was studiedand optimized.Results: The Beer's law was obeyed in the concentration ranges of 1.0-10, 1.0-12, and 0.5-9.0 μg/mL using AM, Rh6G, and IC dyes, respectively, witha correlation coefficient ≥0.9995. The calculated molar absorptivity values are 1.868×104, 1.008×104, and 1.623×104 L/mol/cm using AM, Rh6G, andIC dyes, respectively. The limits of detection and quantification were reported. Intraday and interday accuracy and precision of the methods have beenevaluated. No interference was observed from the additives.Conclusion: The proposed methods were successfully applied to the assay of TOL in tablets preparations, and the results were statistically comparedwith those of the reported method by applying Student's t-test and F-test. The reliability of the methods was further ascertained by performingrecovery studies using the standard addition method

GREEN VORTEX-ASSISTED IONIC LIQUID-BASED DISPERSIVE LIQUID-LIQUID MICROEXTRACTION FOR ENRICHMENT AND DETERMINATION OF CADMIUM AND LEAD IN WATER, VEGETABLES AND TOBACCO SAMPLES

Objective: An eco-friendly, simple and sensitive vortex-assisted ionic liquid-based dispersive liquid-liquid microextraction method (VA-IL-DLLµE) has been proposed to enrich and determine trace levels of cadmium (Cd2+ ) and lead (Pb2+ ) ions in water, vegetables and tobacco samples, prior to its FAAS determination. Methods: The proposed method based on utilization of ionic liquid (IL) (1-hexyl-3-methylimidazolium tris(pentafluoroethyl)trifluorophosphate [HMIM][FAP]) as an extraction solvent for both ions after the complexation with 4,5-dihydroxy-3-phenylazo-2,7-naphthalenedisulfonic acid, disodium salt (Chromotrope 2R) at pH 6.5. The impact of different analytical parameters on microextraction efficiency was optimized. Results: In the ranges of 1.0–300 and 2.0-400 μg/ml, the calibration graphs were linear. The limits of detection were 0.3 and 0.6 μg/ml for Cd2+ and Pb2+ ions, respectively. The preconcentration factor was 100. The relative standard deviation (RSD %)<3.0%, which indicates the proposed method has high precision. Conclusion: The proposed VA-IL-DLLµE method was developed and applied for the estimation of Cd2+ and Pb2+ ion content in various water, vegetables and tobacco samples, and satisfactory results were obtained. The obtained recovery values showed good agreement with the certified values

Egyptian date palm pollen ameliorates testicular dysfunction induced by cadmium chloride in adult male rats

Pollen of the date palm (DPP) has been used for long time as a traditional Egyptian herbal medicine for improving male and female fertility. The purpose of this study was to investigate the protective effect and the possible mechanisms of DPP against cadmium-induced testicular dysfunction in adult male rats. Testicular dysfunction was induced by an oral administration of cadmium chloride (CdCl2, 5mg/kg body wt, every other day for 30 days). Oral administration of DPP (240mg/kg body wt, daily for 30 days) dramatically increased estradiol level of normal rats. Co administration of DPP with CdCl2 significantly restored the reduction in sex organs weight and the decline in sperm counts and their motility as well as the decrease in testosterone level induced by CdCl2 challenge. Treatment with DPP counteracted the increases in antioxidant systems in rat testis as assessed by restoration of reduced glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT). Co administration of DPP with CdCl2 inhibited the abnormalities in testicular morphology, but partially attenuated the elevation in the percentage of testicular DNA damage induced by CdCl2. This study provides evidence that DPP exert a significant protective effect against testicular dysfunction induced by CdCl2 through increases in estradiol level as well as normalization of testosterone levels and sperm parameters. This report also shows some evidence that DPP protects rat's testicular tissue via suppressing testicular histological abnormalities and modulating its DNA damage

Molecular Systematic Study Of The Genus Fagonia L. In Libya

Molecular analyses of ten Fagonia species grown widely in the Libyan Desert have been carried to investigate the taxonomic relationship between them and to evaluate the genetic distances among them. To achieve our aim RAPD technique carried out through six arbitrary primers. Comparing with ladder DNA marker, the obtained data were computerized and analyzed using SYSTAT program. The studied species are F. arabica L., F. bruguieri   DC, F. cretica L., F.glutinosa Delile, F. indica Burm., F. microphylla Pomel, F. sinaica Boiss, F. schweinfurthii Hadidi, F. tenuifolia Steud. and F.thebaica Boiss. The genetic variability among the ten Fagonia species estimated using the DNA protein sequencing obtained from primer 1, indicates that F. indica and F. glutinosa are very closely related while F.cretica, F.microphylla  and F.arabica related to each other and gathered together in another group. The dendrograms of the six primers via UPGMA method according to RAPD finger printing gave two clusters with homology percentage 9%. The first one has F.microphylla and F.schweinfurthii at 50% similarity index. The second cluster divided into two sub-clusters. The first one included three Fagonia species (F.cretica; F.indica and F.glutinosa). The second sub-cluster subdivided into two other sub-clusters. The first one contained F.arabica and F.bruguieri at 50% similarity index. The other sub-cluster gathered F.sinaica and F.thebaica and, both species in genetic relationship with F.tenuifolia.Molecular analyses of ten Fagonia species grown widely in the Libyan Desert have been carried to investigate the taxonomic relationship between them and to evaluate the genetic distances among them. To achieve our aim RAPD technique carried out through six arbitrary primers. Comparing with ladder DNA marker, the obtained data were computerized and analyzed using SYSTAT program. The studied species are F. arabica L., F. bruguieri   DC, F. cretica L., F.glutinosa Delile, F. indica Burm., F. microphylla Pomel, F. sinaica Boiss, F. schweinfurthii Hadidi, F. tenuifolia Steud. and F.thebaica Boiss. The genetic variability among the ten Fagonia species estimated using the DNA protein sequencing obtained from primer 1, indicates that F. indica and F. glutinosa are very closely related while F.cretica, F.microphylla  and F.arabica related to each other and gathered together in another group. The dendrograms of the six primers via UPGMA method according to RAPD finger printing gave two clusters with homology percentage 9%. The first one has F.microphylla and F.schweinfurthii at 50% similarity index. The second cluster divided into two sub-clusters. The first one included three Fagonia species (F.cretica; F.indica and F.glutinosa). The second sub-cluster subdivided into two other sub-clusters. The first one contained F.arabica and F.bruguieri at 50% similarity index. The other sub-cluster gathered F.sinaica and F.thebaica and, both species in genetic relationship with F.tenuifolia

Different Spectrophotometric Methods for Simultaneous Determination of Trelagliptin and Its Acid Degradation Product

New spectrophotometric and chemometric methods were carried out for the simultaneous assay of trelagliptin (TRG) and its acid degradation product (TAD) and applied successfully as a stability indicating assay to recently approved Zafatek® tablets. TAD was monitored using TLC to ensure complete degradation. Furthermore, HPLC was used to confirm dealing with one major acid degradation product. The proposed methods were developed by manipulating zero-order, first-derivative, and ratio spectra of TRG and TAD using simultaneous equation, first-derivative, and mean-centering methods, respectively. Using Spectra Manager II and Minitab v.14 software, the absorbance at 274 nm–260.4 nm, amplitudes at 260.4 nm–274.0 nm, and mean-centered values at 287.6 nm–257.2 nm were measured against methanol as a blank for TRG and TAD, respectively. Linearity and the other validation parameters were acceptable at concentration ranges of 5–50 μg/mL and 2.5–25 μg/mL for TRG and TAD, respectively. Using one-way analysis of variance (ANOVA), the optimized methods were compared and proved to be accurate for the simultaneous assay of TRG and TAD