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Aim: The present study aimed to evaluate the effectiveness of pulp tissue collected from deciduous teeth for the determination of gender using polymerase chain reaction (PCR). Materials and Methods: 140 extracted deciduous teeth were selected. The control group comprised 20 teeth that were subjected to DNA analysis immediately. Whereas Group I and Group II consisted of 60 teeth which were stored in the open environment and salt water, respectively, for a period of 3, 9, and 15 months. DNA was isolated and quantified followed by the amplification of X and Y chromosomes by PCR and compared with the actual gender of the child. The data were analysed using the Shapiro?Wilk test, the independent sample t?test, paired t?test, and the Chi?square test. Result: The PCR analysis results of Group I showed a more correct interpretation of gender as compared to Group II on storage for a period of 15 months. The PCR analysis results of the Control group showed a 100% accuracy rate as compared to the samples in Groups I and II. Conclusions: Gender could be effectively determined from the samples evaluated immediately after extraction. But the period of storage and the method of storage conditions affected the quality of isolated DNA and thus decreased the ability of gender determination
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Objective:To observe the effect of Wuzi Yanzong Wan made of different processed products on the apoptosis of spermatogenic cells in rats with kidney essence deficiency， and explore its protective effect on spermatogenic cells. Method:SD rats were randomly divided into the blank group， model group， whole raw product group， pharmacopoeia group and salt-processed product group， with 8 rats in each group. The kidney essence deficiency model was replicated by giving tripterygium glycoside tablets （the dose of 20 mg·kg<sup>-1</sup>）. The flow cytometry （FCM） was used to analysis the apoptosis of spermatogenic cells in testis， the immunohistochemistry （IHC） and Western blot were used to detect the expression levels of B-cell lymphoma-2 （Bcl-2） and Bcl-2 associated X protein （Bax） in the testis. High performance liquid chromatography （HPLC） was used to compare the contents of eight components （chlorogenic acid， ellagic acid， hyperoside， isoquercitrin， verbascoside， astragalin， kaempferol and schisandrin） in Wuzi Yanzong Wan made of different processed products， the mobile phase was composed of acetonitrile （A）-0.4% phosphoric acid aqueous solution （B） for gradient elution （0-5 min， 5%-15%A； 5-10 min， 15%-17%A； 10-25 min， 17%A； 25-35 min， 17%-26%A； 35-60 min， 26%-56%A）， the detection wavelength was set at 254 nm. Result:Compared with the model group， the total apoptosis rate of spermatogenic cells， protein expression of Bax and Bcl-2 in each administration group were improved. Among them， the pharmacopoeia group and salt-processed product group had significant effects （<italic>P</italic><0.01）， and the improvement effect of the pharmacopoeia group and salt-processed product group was significantly better than that of the whole raw product group （<italic>P</italic><0.05）. The contents of chlorogenic acid， hyperoside， isoquercitrin and verbascoside in Wuzi Yanzong Wan were increased after the herbal medicines being processed with salt-water. The content of ellagic acid in the salt-processed product group increased， while it decreased in the pharmacopoeia group. The contents of verbascoside， astragalin， kaempferol and schisandrin in samples from the salt-processed product group were greater than those in samples from the pharmacopoeia group. Conclusion:Wuzi Yanzong Wan may reduce the apoptosis of spermatogenic cells in rat testis by inhibiting the expression of Bax and promoting the expression of Bcl-2， and exert its effect of nourishing kidney and enriching essence. The enhanced anti-spermatogenic effect of Wuzi Yanzong Wan after processing may be related to the changes in chemical composition content after processing.
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【Objective】 To understand the frequency and significance of anti-" Mia" (anti-" Mia" mixtures of antibodies) in local population in Zhongshan, and the influence of different experimental conditions on the activity of human anti-" Mia" . 【Methods】 The microplate-based agglutination assay and polybrene method were used to screen anti-" Mia" in 3 587 blood samples from voluntary blood donors and patients using O type red blood cells with positive Mia antigen, then.rechecked by tube method and microcolumn gel card method. 【Results】 The frequency of anti-" Mia" was 1.06% (38/3 587), among which 60.5% (23/38) were IgM and 39.5% (15/38) were mixture of IgM and IgG; 0.61% (13/2 135) in local blood donors and 1.72% (25/1 452) in patients(P<0.01). 65.8% (25/38) of the population carrying anti-" Mia" had a history of immunity. 57.9% (22/38) were identified to be anti-" Mur" and 42.1% (16/38) anti-" Mia" using GP.Vw erythrocyte. The appropriate incubation time for anti-" Mia" test was 10 min. 【Conclusion】 The frequency of anti-" Mia" was relatively high among blood donors and patients in Zhongshan, and most of the anti-" Mia" carriers had a history of immunity. Most anti-Mia antibodies were active in saline, and some of them were mixture of IgM and IgG. It may be helpful to include Mia positive red blood cells in the irregular antibody screening cell panel to improve the safety of blood transfusion.
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Jia-mo Chen who was a Xinan medical scientist put forward the theory of “Salt-processing enhancing drug into kidney meridian” recorded in “Enlightening Primer of Materia Medica”, which has great significance for the clinical application of Chinese medicine processing excipients. In recent years, scholars have done a lot of research work on the chemical composition and pharmacological effect changes of Chinese medicines and related prescriptions before and after salt-processing, and preliminarily explained the scientific connotation of the processing theory of “salt-processing enhancing drug into kidney meridian” of Chinese materia medica (CMM). According to the literatures of recent years studies, the research progress on processing theory of “Salt-processing enhancing drug into kidney meridian” of CMM was summarized and concluded from the perspective of chemical composition and pharmacological effects changes, and the problems of the present study were analyzed, which put forward new research idea for the theory of “salt-processing enhancing drug into kidney meridian” combined with modern research methods.
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Objective: To determine the spread of misinformation on salt water among Nigerians, salt water use for Ebola prophylaxis, and the role played by the social media during the 2014 Ebola outbreak. Methods: Information was collected from the general Nigerian population through online Google forms which were majorly disseminated via Facebook and WhatsApp platforms. The data retrieved was analysed using descriptive statistics, Chi-square test and multivariate logistic regression. Results: A total of 703 questionnaires were included in the final analysis. The respondents' mean age was (30.2±6.7) years, predominantly male (73.2%). Almost all of them (95.0%) had received some message to use salt water, 37.4% of whom received such message on social media. Around a half of them ever made an attempt to verify the health information they received on social media (50.9%), and about a quarter (24.0%) of them had used salt water during the outbreak. Many of them had used salt water because they believed it would not harm them (52.0%). Salt water was less likely to be used by those who had received such message on social media, as well as by those who had received some contrary information to salt use. Conclusions: Social media could serve as an effective tool in propagating health information and should be actively engaged by health agencies, to spread accurate information.
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Objective: To determine the spread of misinformation on salt water among Nigerians, salt water use for Ebola prophylaxis, and the role played by the social media during the 2014 Ebola outbreak. Methods: Information was collected from the general Nigerian population through online Google forms which were majorly disseminated via Facebook and WhatsApp platforms. The data retrieved was analysed using descriptive statistics, Chi-square test and multivariate logistic regression. Results: A total of 703 questionnaires were included in the final analysis. The respondents' mean age was (30.2±6.7) years, predominantly male (73.2%). Almost all of them (95.0%) had received some message to use salt water, 37.4% of whom received such message on social media. Around a half of them ever made an attempt to verify the health information they received on social media (50.9%), and about a quarter (24.0%) of them had used salt water during the outbreak. Many of them had used salt water because they believed it would not harm them (52.0%). Salt water was less likely to be used by those who had received such message on social media, as well as by those who had received some contrary information to salt use. Conclusions: Social media could serve as an effective tool in propagating health information and should be actively engaged by health agencies, to spread accurate information.
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Objective To observe the effect of raw and salt-processed of psoralen on the function of liver and kidney and the expression of aquaporins 5 (AQP5), AQP4, and AQP2 in the kidney-yang deficiency model rats. Methods Used hydrocortisone made deficiency of kidney-YANG model rats, total protein (TP), albumin (Alb) and aspartate aminotransferase (AST), alanine aminotransferase (ALT), serum creatinine (Scr), and urea nitrogen (BUN) content in serum of rats were determined by chemical reagent method. The expression of AQP5, AQP4, and AQP2 were detected by qRT-PCR. Results The levels of ALT and AST in the raw and salt-processed of psoralen groups increased significantly, and Alb decreased significantly compared with model group (P andlt; 0.05); The levels of ALT and AST in the salt-processed of psoralen group were lower than that in the raw psoralen group; the levels of BUN and Scr in the treated group were significantly higher than that in the model group (P andlt; 0.05). The expression of mRNA for AQP2 and AQP4 of model group was decreased significantly (P andlt; 0.05) compared with control group, and expression of AQP5 mRNA increased significantly (P andlt; 0.05). The expression of AQP4 mRNA in raw psoralen group was significantly higher than that in model group (P andlt; 0.05), and AQP5 mRNA was significantly lower than that in model group (P andlt; 0.05). Moreover, the expression of AQP2 and AQP5 mRNA of salt-processed of psoralen group was significantly higher than that of the raw psoralen group (P andlt; 0.05), and AQP4 mRNA expression was significantly lower than that of salt-processed of psoralen group (P andlt; 0.05). Conclusion Salt-processed of psoralen can reduce the side effects of drugs on liver and kidney function in kidney-yang deficiency model rats, it can also alleviate the dryness of raw psoralen. The relief of dryness by salt-processed of psoralen may be related to the regulation of the gene expression of aquaporins in vivo.
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AIM To investigate the effects of frost-like powder,steaming,stir-frying with wine,stir-frying with salt-water and stir-frying with vinegar on compositions and contents of fatty oils in Descurainiae Semen.METHODS Descurainiae Semen was processed by five methods,respectively.The fatty oils were extracted from various processed products by petroleum ether,which were then derivatized.GC-MS was adopted in the qualitative identification and quantitative determination.RESULTS Except for frost-like powder,various processing methods could increase the extraction rate of fatty oils.Compared with raw product,the quantities of fatty oils in various processed products were decreased,together with the increased contents.The main compositions of obtained fatty oils were unsaturated fatty acids,whose contents in various processed products (except stir-frying with vinegar product) were higher than those in the raw product.CONCLUSION The effects of different processing methods on compositions and contents of fatty oils in Descurainiae Semen show obvious differences,among which the processing effect of stir-frying with vinegar is not satisfactory.
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Objective: To analyze the processing situation of 124 batches of scorpions and optimize the salt-water processing.Methods: The character, extract, moisture, total ash, acid insoluble ash, amino acids content and heavy metals in the marketed scorpions were determined.Using extract and amino acids contents as the indices, the salt-water processing was optimized.Results: The results of the above determinations showed that the quality difference was very obvious for the marketed scorpion, and the extract and amino acids contents were the highest in scorpion boiled in 2% sodium chloride aqueous solution for 5 min.Conclusion: The item of extract test should be revised in the current standard, and the items such as moisture, total ash, acid insoluble ash, amino acids content and heavy metals should be taken into consideration in order to control the quality of scorpion more comprehensively.The best salt-water processing of scorpion is boiled in 2% sodium chloride aqueous solution for 5 min.
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A produção de tilápia tem tido um crescimento acelerado no Brasil e em todo o mundo, principalmente com produções semi-intensivas e intensivas por ser um produto potencialmente disponível para o consumidor, por sua facilidade de cultivo, manejo, alta adaptabilidade, fácil reprodução e alta produtividade. A contínua expansão e melhoramento da eficiência na tilapicultura requer paralelamente atualização e desenvolvimento de novos conhecimentos e tecnologias que garantem o sustento do produtor aproveitando recursos normalmente perdidos ou inutilizados de uma forma econômica e ecológica, que ofereçam uma alternativa de alimentação e que evitem a contínua contaminação ambiental. O consórcio entre a tilápia, animais domésticos e plantas utilizando resíduos orgânicos como fonte de fertilização e alimentação é uma alternativa viável, ecológica e econômica que fornece ao produtor uma fonte barata de nitrogênio, fósforo e potássio encaminhados à produção primária do tanque e ao mesmo tempo uma fonte de alimentação de boa qualidade nutritiva que pode substituir a utilização de rações comerciais. Tilapicultura, utilizando água residual e água salgada, são métodos de produção que também tem um grande potencial e que podem ser utilizados pelos produtores no melhoramento e produtividade do cultivo.
The production of tilapia and its consumption have been promptly increasing in Brazil and worldwide, mainly with semi-intensive and intensive productions since it is a product potentially available for the consumer and due to its facility of cultivation, management, high adaptability, easy reproduction and great productivity. The continuous expansion and improvement of the tilapia culture efficiency also demand an updating and a development of new knowledge and technologies which ensure the support of the producer by economic and ecological forms using resources that are generally missed or useless, offering, thus, an alternative of feeding which avoids the continuous environmental contamination. The association among tilapia, domestic animals and plants that use organic residues as a source of fertilization and feeding is a viable, ecological and economic alternative that provides the producer with a cheap source of nitrogen, phosphorus and potassium bounded for the primary production of the reservoir and, at the same time, a source of feeding of good nutritive quality that can substitute the use of commercial rations. The tilapia culture that uses residual and salt water is a production method that also has a great potential and that can be used by the producers in order to improve the cultivation productivity.
La producción de tilapia ha tenido un crecimiento acelerado en Brasil y en todo el mundo principalmente con producciones semintensivas e intensivas por ser un producto potencialmente disponible para el consumidor, por su facilidad de cultivo, manejo, alta adaptabilidad, fácil reproducción y alta produtividad. La continua expansión y mejoramiento de la eficiencia en la tilapicultura requiere paralelamente actualización y desarrollo de nuevos conocimientos y tecnologias que permitan el sustento del productor, aprovechando recursos normalmente perdidos o inutilizados de una manera económica y ecológica, que brinden una alternativa de alimentación y que eviten la continua contaminación ambiental. La integración entre la tilápia, animales domésticos y plantas utilizando resíduos orgánicos como fuente de fertilización y alimentación es una alternativa viable, ecológica y económica que brinda al productor una fuente barata de nitrógeno, fósforo y potásio encaminados a la produción primária del estanque y al mismo tiempo una fuente de alimentación de buena calidad nutritiva que puede subtituir la utilización de raciones comerciales. Tilapicultura utilizando agua residual y agua salada, son métodos de producción que también tienen un gran potencial y que pueden ser utilizados por los productores en el mejoramiento y la productividad del cultivo.
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Fertilização , Tilápia/crescimento & desenvolvimentoRESUMO
In this study, the contents of steroid hormones and micro-substances in 5 salt-water fishes including Sea-horse, White hering, Garrupa, Selachian and Mackerel were studied. The result demonstrated that: the contents of steroid hormones in 5 mentioned fishes were relatively higher than other salt-water creatures. The study also explored the availability as well as contents of some necessary micro-substances in these salt-water fishes (K, Ca, Cu, Fe, Zn, Mn, Se). Although, the ability of using the active elements in the 5 salt-water fishes as medicines to enhance health and prevent diseases is very potential, it needs further studies
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Objective To observe the tissular pathological and ultrastructural changes of gastric mucosa with experimental atrophic gastritis caused by salt-water in rats and to explore the relationship between atrophic gastritis and high-salt diet.Methods The atrophic gastritis rat model was made by salt-water perfusion(0.15g/ml,2.5ml/d).The tissue of sinus ventriculi was detected with histopathologic examination and the ultrastructure of gastric mucosa was observed by scanning electron microscope.Results Under light microscope,the gastric gland was shrunk obviously in high-salt water perfusion group after high-salt water was given for 24 weeks.The muscle in muscular layer was hyperplasia and cramped into the lamina propria.The glandular epithelium in the upper 1/3～2/3 edge of the gland was atrophic.The gastric micro-depression became broaden and the width of cervical part of gastric pit became narrow.Under the scanning electromicroscope,the gastric mucosa was comparted into many gastric areas in the control group.Round or elliptic epithelium cells lined on the wall of gastric pits were in the same size and had short and spare microvillus.The epithelium was lined regularly and covered by laminar mucus.In salt-water perfusion group after the salt-water was given for 24 weeks,the surface of the gastric mucosa became thin and flat,and the glandular cells became rough.The mucosa between lumens of gland was broadened and the limited exfoliation of mucosa also could be seen.When the salt-water was given for 32 weeks,the gastric epithelial cells were shrunk,and the diameter of lumen of gland was broadened.There was breakage in the cell surface.Erosions with various size and shape and fibrous exudation could be seen.Conclusion Salt-water perfusion may cause the damage of the epithelia of gastric mucosa in experimental rats and long-term high-salt stimulation can induce the injury and atrophy of gastric mucosa.