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  • 2020-2024  (1,337)
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  • 2020-2024  (1,337)
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  • 1
    In: Breast Cancer Research and Treatment, Springer Science and Business Media LLC, Vol. 192, No. 3 ( 2022-04), p. 629-637
    Type of Medium: Online Resource
    ISSN: 0167-6806 , 1573-7217
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2004077-5
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  • 2
    In: Environment International, Elsevier BV, Vol. 142 ( 2020-09), p. 105850-
    Type of Medium: Online Resource
    ISSN: 0160-4120
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2020
    detail.hit.zdb_id: 554791-X
    detail.hit.zdb_id: 1497569-5
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  • 3
    In: Molecules, MDPI AG, Vol. 25, No. 16 ( 2020-08-10), p. 3636-
    Abstract: Bivalves, such as freshwater clams (Corbicula fluminea) and hard clams (Meretrix lusoria), are the most extensive and widely grown shellfish in land-based ponds in Taiwan. However, few studies have examined the contamination of bivalves by quinolone and organophosphorus insecticides. Thus, we adapted an established procedure to analyze 8 quinolones and 12 organophosphorus insecticides using liquid and gas chromatography–tandem mass spectrometry. Surveys in Taiwan have not noted high residual levels of these chemicals in bivalve tissues. A total of 58 samples of freshwater or hard clams were obtained from Taiwanese aquafarms. We identified 0.03 mg/kg of enrofloxacin in one freshwater clam, 0.024 mg/kg of flumequine in one freshwater clam, 0.02 mg/kg of flumequine in one hard clam, 0.05 mg/kg of chlorpyrifos in one freshwater clam, 0.03 mg/kg of chlorpyrifos in one hard clam, and 0.02 mg/kg of trichlorfon in one hard clam. The results indicated that 5.17% of the samples had quinolone insecticide residues and 5.17% had organophosphorus residues. However, the estimated daily intake (EDI)/acceptable daily intake quotient (ADI) indicated no significant risk and no immediate health risk from the consumption of bivalves. These results provide a reference for the food-safety screening of veterinary drugs and pesticides in aquatic animals. Aquatic products should be frequently screened for residues of prohibited chemicals to safeguard human health.
    Type of Medium: Online Resource
    ISSN: 1420-3049
    Language: English
    Publisher: MDPI AG
    Publication Date: 2020
    detail.hit.zdb_id: 2008644-1
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  • 4
    In: Scientific Reports, Springer Science and Business Media LLC, Vol. 12, No. 1 ( 2022-06-15)
    Abstract: Current rat alveolar ridge preservation models have not been well standardized. In this study, we proposed decoronation-induced infected alveolar socket model of rat. The bilateral maxillary first molars (M1) of twenty-four rats were decoronized or extracted. After 2, 6, 10, and 14 weeks, bone and soft tissue changes at M1 and periodontal conditions of maxillary second (M2) and third molars (M3) were evaluated by micro-computed tomography and histological analysis. Additional eighteen rats with standardized size defects were grafted with Bio-Oss Collagen to compare with unmanipulated contralateral side. Decoronation preserved greater bone and soft tissue dimensions at M1, provided larger three-dimensional (3D) bone contour volume, but also promoted periodontal breakdown of M2 Histological results showed intense inflammatory cell infiltrations and severe bone resorption within M1 socket and at mesial aspect of M2. The critical dimensions to accommodate largest standardized defect at M1 were 2.2–2.3 mm at vertical bone height and 2.8–3.2 mm at alveolar crestal width. Bio-Oss Collagen could not fully preserve buccal or palatal bone height but could be beneficial in preserving ridge width in large alveolar defects. Collectively, if periodontally-involved alveolar bone defect is preferred, we suggest extracting M1 roots 6 weeks after decoronation to allow periodontitis to occur at M2. If standardized critical dimension defect is preferred, we suggest extracting M1 roots 2 weeks after decoronation, and creating defect in the middle of M1 site with size no larger than 2.7 mm diameter to its full depth.
    Type of Medium: Online Resource
    ISSN: 2045-2322
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2022
    detail.hit.zdb_id: 2615211-3
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  • 5
    In: International Journal of Molecular Sciences, MDPI AG, Vol. 23, No. 1 ( 2022-01-05), p. 558-
    Abstract: In this study, we fabricated gelatin/nano-hydroxyapatite/metformin scaffold (GHMS) and compared its effectiveness in bone regeneration with extraction-only, Sinbone, and Bio-Oss Collagen® groups in a critical size rat alveolar bone defect model. GHMS was synthesized by co-precipitating calcium hydroxide and orthophosphoric acid within gelatin solution, incorporating metformin, and cross-linked by microbial transglutaminase. The morphology, characterization, and biocompatibility of scaffold were examined. The in vitro effects of GHMS on osteogenic gene and protein expressions were evaluated. In vivo bone formation was assessed in a critical size rat alveolar bone defect model with micro-computed tomography and histological examination by comparing GHMS with extraction-only, Sinbone, and Bio-Oss Collagen®. The synthesized GHMS had a highly interconnected porous structure with a mean pore size of 81.85 ± 13.8 µm. GHMS exhibited good biocompatibility; promoted ALPL, RUNX2, SP7, BGLAP, SPARC and Col1a1 gene expressions; and upregulated the synthesis of osteogenic proteins, including osteonectin, osteocalcin, and collagen type I. In critical size rat alveolar bone defects, GHMS showed superior bone regeneration compared to extraction-only, Sinbone, and Bio-Oss Collagen® groups as manifested by greater alveolar ridge preservation, while more bone formation with a lower percentage of connective tissue and residual scaffold at the defect sites grafted with GHMS in histological staining. The GHMS presented in this study may be used as a potential bone substitute to regenerate alveolar bone. The good biocompatibility, relatively fast degradation, interconnected pores allowing vascularization, and higher bioactivity properties of the components of the GHMS (gelatin, nHA, and metformin) may contribute to direct osteogenesis.
    Type of Medium: Online Resource
    ISSN: 1422-0067
    Language: English
    Publisher: MDPI AG
    Publication Date: 2022
    detail.hit.zdb_id: 2019364-6
    SSG: 12
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  • 6
    In: World Journal of Biological and Pharmaceutical Research, Zeal Scientific Publication, Vol. 2, No. 2 ( 2022-04-30), p. 001-009
    Abstract: Over-nutrition rather than under-nutrition is an important public health challenge in some developed countries. However, the under-nutrition is a major problem according to the global perspective. Therefore, the research and development (R & D) of agricultural functional materials or products for the prevention of fat accumulation is urgently needed. In this experiment, Sprague Dawley (SD) rats in the normal control group were fed with the normal composition for 8 weeks during the experiment. SD rats in the negative control group and three sweet potato fermented products (SPFP) groups were fed a high fat diet for 8 weeks during the experiment. According to the experimental design, three doses SPFP [250, 500, and 1,000 mg/kg body weight (BW)] will be administered after 4 weeks of feeding the high fat diet. During the experiment, BW o f the SD rats was recorded every week and blood, liver, and body fat were collected for analysis of body fat rate, blood lipid content, blood glucose content, liver lipid content, and liver and renal functions. Based on the results, the consumption of SPFP does not affect liver and kidney functions, indicating that SPFP is a safe and edible agricultural material. BW change of the normal control group was significantly lower than that of the negative control group and three SPFP groups (p 〈 0.05). In addition, there was no significant difference in the BW change rate among the groups eat the high fat feed (p 〉 0.05), but the trend of BW change rate in the low and middle doses of SPFP groups was lower than that in the other high fat feed groups. The food utilization rate of the high fat diet group was significantly higher than that of the normal diet group (p 〈 0.05). The body fat rate of the normal control group was significantly lower than that of the high fat feed groups (p 〈 0.05). There was no significant difference between the high fat feed groups (p 〉 0.05). However, the trend showed that the body fat rate of the low and middle doses of SPFP groups were lower than that of the negative control group and the high dose of SPFP group. In addition, the results of other measurement indicators such as blood lipid content, blood glucose content, and liver lipid content did not show any negative effects of SPFP. Based on the above results, although SPFP on the prevention of body fat accumulation was not significantly exhibited, however, the trend shows that the low and middle doses of SPFP can decrease body fat production. Taken these results together, SPFP may has the potential for the prevention of fat accumulation.
    Type of Medium: Online Resource
    ISSN: 2799-0338
    URL: Issue
    Language: Unknown
    Publisher: Zeal Scientific Publication
    Publication Date: 2022
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  • 7
    Online Resource
    Online Resource
    Scientific Research Archives ; 2022
    In:  International Journal of Science and Technology Research Archive Vol. 2, No. 1 ( 2022-02-28), p. 061-067
    In: International Journal of Science and Technology Research Archive, Scientific Research Archives, Vol. 2, No. 1 ( 2022-02-28), p. 061-067
    Abstract: Eukaryotic cells can store and converse excess lipid to the cytosolic lipid droplets. Adipogenesis of preadipocytes has been often used to study the molecular basis and the effect of obesity drugs on fat cell conversion. Many methods were developed for the detection of the cytosolic lipid droplets as Nile red, BODIPY 493/503 (4, 4-difluoro-1, 3, 5, 7, 8-pentamethyl-4-bora-3a, 4adiaza-s-indacene), BODIPY 665/676, 1,6-diphenylhexatriene (DPH), DAPI, Hoechst, Sudan III, and Oil-red O. The differences in the spectral properties of these lipophilic dyes and their advantages of each are discussed. In this study, an in vitro flow cytometric detection method was established for the detection of lipid-accumulated cells. Commonly, the longer the period of adipogenic induction, the greater the quantity of lipid in fat cell can accumulate. Thus, to determine whether increasing the fat stored within a cell would result in the greater granularity. 3T3-L1 cells in culture were hormonally induced for adipogenesis. Then, these cells were dissociated and analyzed in a flow cytometer at 0, 5, and 10 days post-induction. After adipogenic induction, the cells had become increasingly heterogeneous in their cellular granularity. The cells containing greater granular structure were markedly increased, and this increase in granularity positively correlated with the time of the post-adipogenic induction. On the other analysis, the 0 and 10 days post adipogenic induction of 3T3-L1 cells were gated for 4 regions. The R1 region contains cells with a level of granularity similar to that seen in the control cells (non-adipogenic induction), whereas R2 to R4 regions contain cells with increasing granularity. According to all data, we have successfully established an in vitro flow cytometric detection method for the detection of lipid-accumulated cells. We wish this method will be applied on the research of obesity drugs and the design of therapeutic strategies for obesity in the future.
    Type of Medium: Online Resource
    ISSN: 0799-6632
    URL: Issue
    Language: Unknown
    Publisher: Scientific Research Archives
    Publication Date: 2022
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  • 8
    In: World Journal of Advanced Science and Technology, Zeal Scientific Publication, Vol. 1, No. 2 ( 2022-06-30), p. 020-032
    Abstract: Faced with the impact of extreme climate, countries have proposed carbon dioxide emission reductions, hoping to achieve carbon neutrality by 2050, and Taiwan’s industries must also face the transformation of low-carbon green energy. Light-emitting diode (LED) is a cost effective semiconductor device that produces light within a narrow bandwidth of wavelength through electroluminescence. Recently, LED technology has attention to apply in the area of food production, preservation, and safety. At present, some researches have been demonstrated that the antimicrobial LED visible light is less anti-microbial efficacy than ultraviolet (UV) light. However, the antimicrobial LED visible light has been recognized as an alternative technology to UV light since it is an environmentally friendly and safe technology for human and animals. For this reason, LED technology has recently received attention for applying in many test fields as laboratory, pig farms, computer, bio-medical industries etc. In this study, this novel clean and disinfect tool-novel environment-cleaned LED devices were tested in the various fields and obtained the positive results as the application of novel environment-cleaned LED devices on anti-fungal efficacy, and ethylene, PM2.5, and harmful gas degradations in laboratory, anti-bacterial and virus efficacy in laboratory and/or pig farms, anti-microbial notebook panel development, and anti-colorectal cancer in vitro. In the future, we wish this novel environment-cleaned LED devices will friendly used in human and animal environments to decrease the harmful matters in the environments.
    Type of Medium: Online Resource
    ISSN: 2945-3178
    URL: Issue
    Language: Unknown
    Publisher: Zeal Scientific Publication
    Publication Date: 2022
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  • 9
    In: International Journal of Biology and Pharmacy Research Updates, Orion Scholar Journals Publication, Vol. 2, No. 1 ( 2022-07-30), p. 006-013
    Abstract: Allergic rhinitis (AR) was also called hay fever which was a type of nasal inflammation when the immune system overreacts to environmental allergen exposures. AR’s clinical symptoms included a runny or stuffy nose, sneezing, red, itchy, watery eyes, and eye swelling. The fluid in the nasal cavity was usually clear. Patients with AR can affect sleep and work qualities. Seriously, the AR symptoms can also cause asthma, allergic conjunctivitis, or atopic dermatitis. Therefore, it is an important issue to attenuate AR symptoms and research the novel therapeutic drugs for AR patients. The purpose of this study was to introduce an easy-to-establish experimental mouse model of AR. In this study, the male BALB/c mice were divided respectively into as the Group A (n = 12) and the Group B (n = 12). Group A and Group B were designed as the normal control and RA, respectively. BALB/c mice in Group B were sensitized by intraperitoneal injection of ovalbumin (OVA) on day 0, day 4, day 13, and day 20, followed by continuous nasal administration of OVA solution once per day between day 21-43. BALB/c mice in Group A received sensitization of intraperitoneal injection of phosphate-buffered saline (PBS) on day 0, day 4, day 13, and day 20 and continuous nasal administration of PBS instead of OVA once per day between day 21-43. Before and after sensitization, the frequencies of nasal symptoms (sneezing, nasal rubbing) were recorded and counted. Results were showed that sneezing times in Group B were higher than Group A on D29, D30, D36, and D43 of the experiment. The sneezing times in Group A were significant higher on D29 and D30 of the experiment. However, the sneezing times in Group B were significant higher on D29, D30, D36, and D43 of the experiment. The rubbing times in Group B were higher than Group A on D29, D30, D36, and D43 of the experiment. The rubbing times in Group A were significant higher on D30 and D43 of the experiment. However, the rubbing times in Group B were significant higher on D29, D30, D36, and D43 of the experiment. Based on these results, a successful mouse model of AR has been established. We hope that this RA mouse model will provide a tool for the research of the novel AR therapeutic drugs and apply these novel AR therapeutic drugs to attenuate the AR symptoms in AR patients in the future.
    Type of Medium: Online Resource
    ISSN: 2815-231X
    URL: Issue
    Language: Unknown
    Publisher: Orion Scholar Journals Publication
    Publication Date: 2022
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  • 10
    Online Resource
    Online Resource
    Orion Scholar Journals Publication ; 2022
    In:  International Journal of Scientific Research Updates Vol. 3, No. 2 ( 2022-05-30), p. 027-036
    In: International Journal of Scientific Research Updates, Orion Scholar Journals Publication, Vol. 3, No. 2 ( 2022-05-30), p. 027-036
    Abstract: Sunlight contains ultraviolet (UV) light that causes sunburn and makes the skin age faster, leading to more wrinkles as older. The UV light can come from the natural and artificial sources. Moreover, UV light has shorter wavelengths than the visible light. Therefore, people’ eyes can’t see UV, but people’ skin can feel it. In this study, the in vivo skin health test efficacy modules have been established via the detection of skin’s moisture retention (%), skin’s cytokine expression levels, enzymatic expressions in the skin, the expression levels of hyaluronic acid (HA), collagen type I, melanin, and malondialdehyde (MDA) in the skin, and the experimental mice’ skin thickness and lesions via histo-pathologic examination. According to the results, the clinical behavior observation indexes of Institute of Cancer Research (ICR) mice in each group were normal during the experiments. Moreover, all ICR mice were survival until the end of the experiments. The moisture retention (%) of skin in ICR mice in UVB group was significant decrease after D1, D3, and D5 of UVB irradiation compared to the normal control group. Based on the IL-1β, IL-6 and TNF-α analysis expressions, both IL-1β and IL-6 expressions in UVB group were significantly increase than the control group, while there was no significant difference in the TNF-α expression between the groups. ICR mice’ skin enzymatic expressions in each group presented that catalase (CAT) expression and superoxide dismutase (SOD) activity in UVB group were significantly lower than the control group. The MDA expression in UVB group were significantly higher than the control group. The HA and collagen type I expressions in UVB group were significantly lower than the control group. However, the melanin expressions in UVB group and the control groups were not significantly different. The matrix metalloproteinase 2 (MMP-2) expressions in UVB group was significantly higher than the control group. The skin epidermal thickness in UVB group was significantly thicker than the control group. The dermal thickness in two groups was not significantly different. The number of sunburn cells in the derma in UVB group was significantly increase than the control group. The solar elastosis in the derma in two groups was not significantly different. Based on the above results, we have successfully established in vivo skin health test efficacy modules to evaluate the status of skin health. We hope the modules should be provide for the research and development (R & D) of the effective treatment included drugs and therapeutic strategies.
    Type of Medium: Online Resource
    ISSN: 2783-0160
    URL: Issue
    Language: Unknown
    Publisher: Orion Scholar Journals Publication
    Publication Date: 2022
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