Wound Healing Activities of Rafflesia Hasseltii Extract in Rats

The effects of topical application of Rafflesia hasseltii buds and flowers extract on the rate of wound healing and histology of healed wound were assessed. Four groups of adult male Sprague Dawley rats were experimentally wounded in the posterior neck area. A thin layer of blank placebo was applied topically to wounds of Group 1 rats. Wounds of experimental animals (Group 2 and 3) were treated with placebo containing 5% and 10% R. hasseltii buds extract, respectively. A thin layer of Intrasite gel was applied topically to wounds of Group 4 animals as reference. Macroscopically, wounds treated with placebo containing 5% and 10% R. hasseltii buds extract or Intrasite gel have been significantly accelerated the rate of wound healing compared to placebo-treated wounds. Histological analysis of healed wounds has confirmed this effect. Wounds treated with placebo containing 5%, 10% R. hasseltii buds extract or Intrasite gel showed markedly less scar width at wound enclosure and granulating tissue contained markedly more collagen and proliferating fibroblasts, but with the absence of inflammatory cells compared to wounds treated with blank placebo. In conclusion, the findings of increased rate of wound closure and contraction together with the histological findingssuggest that Rafflesia hasseltii buds extract is very effective in accelerating the wound healing process

Channa striatus in inflammatory conditions: A systematic review

Channa striatus (CS), or snakehead murrel, is an obligate air-breathing freshwater fish. Besides its wound healing properties, CS has also been reported to exhibit anti-inflammatory effects in multiple studies. While there are anti-inflammatory medications such as nonsteroidal anti-inflammatory drugs (NSAIDs), their long-term use is associated with an increased risk of peptic ulcers, acute renal failure, stroke, and myocardial infarction. Thus, it is essential to look at natural methods such as CS extract. While there is an abundant number of investigative studies on the inflammatory properties of CS, the quality of these studies has not been evaluated effectively. Thus, this review aims to summarise, evaluate, and critically appraise currently available literature regarding the anti-inflammatory properties of CS extract. This is done by performing a search using four databases, namely Google Scholar, Embase via Elsevier, Scopus, and Web of Science, with the following terms: Channa striatus AND inflammation. From our review, CS has been experimentally shown to positively affect inflammatory conditions such as gastric ulcers, dermatitis, osteoarthritis, and allergic rhinitis. Beneficial effects were also found on inflammation in the presence of tuberculosis and in situations that involve inflammation, such as wound healing. While CS clearly has potential for treating inflammatory conditions, much work needs to be done on identifying and isolating the active constituents before exact mechanisms of action can be worked out to develop future anti-inflammatory medications

Determination toxic effects of Hystrix Brachyura Bezoar extracts using cancer cell lines and embryo zebrafish (Danio rerio) models and identification of active principles through GC-MS analysis

Ethnopharmacological relevance: Porcupine bezoar (PB) is used as folk medicine for various medical conditions including cancer treatment in Malaysia. However, its toxicity profile has never been thoroughly ascertained to confirm its safe nature as an efficacious traditional medicine in the treatment of cancer as well as other ailments. Aim of the study: This study was aimed to reveal three different PBs’ aqueous extracts(viz. PB-A, PB-B, PB-C) chemical constituent’s profile using GC-MS analysis, anticancer property on A375, HeLa and MCF7 cancer cells, toxicity profile on zebrafish embryo morphology, EC50, LC50 and teratogenicity index. Materials and methods: PBs’ extracts characterization was performed through GC-MS analysis, in vitro anticancer effect was carried out on A375, HeLa and MCF7 cancer cell lines and finally and toxicity properties on three different PBs aqueous extracts (viz. PB-A, PB-B, PB-C) were determined using zebrafish embryo model. Results: The GC-MS analysis revealed 10 similar compounds in all PBs’ extracts. Dilauryl thiodipropionate was found to be a major compound in all PBs’ extracts followed by tetradecanoic acid. An in vitro anticancer study revealed PB extracts exerted median inhibition concentration (IC50) <50 μg/mL, on cancer cells viz. A375, HeLa and MCF7 with no significant toxicity on normal cells viz. NHDF cells. In vivo toxicity of PBs extracts found affecting tail detachment, hatching, craniofacial, brain morphology, soft tissues, edema, spinal, somites, notochord and cardiovascular system (brachycardia, disruption of blood circulation) deformities. The LC50 and EC50 demonstrated PB extracts effect as dose and time dependent with median concentration <150.0 μg/mL. Additionally, teratogenicity index (TI) viz. >1.0 revealed teratogenic property for PB extracts. Conclusions: The findings revealed that all three PBs aqueous extracts possessed anticancer activity and exhibited significant toxicological effects on zebrafish embryos with high teratogenicity index. Hence, its use as an anticancer agent requires further investigation and medical attentions to determine its safe dose

継承語年少学習者と第二言語学習者 : ロシア語教育の方法

<p>(G1) (Normal control group); (G2) (Ulcer control group); (G3) (Omeprazole); (G4) (62.5 mg/kg), (G5) (125 mg/kg), (G6) (250 mg/kg) and (G7) (500 mg/kg) of <i>V</i>. <i>pubescens</i> extract. HSP70 protein was over-expressed in rats pre-treated with omeprazole or <i>V</i>. <i>pubescens</i> extract (brown color shows over-expression of HSP70 protein) (magnification 20×). There were 6 rats in each group of experiment. The Image J program was used to evaluate protein expression. All values are expressed as the means ± the standard error of mean. The mean difference was significant at the <i>p < 0</i>.<i>05</i> level compared to the cancer control group.</p

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家族看護学が看護の専門領域として確立され発展していくため,今後の研究の方向性を明らかにしたいと,国内外の家族および家族看護学に関する文献の数量的動向と研究領域別文献概観を行った結果,国内外ともに家族,家族の健康,家族援助に関する研究報告は増加傾向にあり,家族への関心の高まりと実践上の必要性が反映されていた。また,わが国では高齢化社会における家族援助の要求が家族看護学の確立を促していること,今後は家族を対象とした評価方法の開発や援助に関する予防的・実践的研究が求められていることが示唆された。The review of the literature on family nursing through numerical trend and research fields was done to know how to establish and develop nursing specialty in this area. The followings were suggested. 1) The researches concerning family, family health, and family practice were increasing in both inside and outside of Japan. 2) ln U. S. A., family nursing was developed in the field of maternal-child and psychiatric nursing, introducing family system theory. In Japan family nursing is rather essential in the field of home care for the aeed, due to aging population. 3) Further researches on development of assessment tool, intervention and social support are necessary, especially by preventive and practical points of view

In Vitro and In Vivo Anti-Angiogenic Activities of Panduratin A

Targeting angiogenesis has emerged as an attractive and promising strategy in anti-cancer therapeutic development. The present study investigates the anti-angiogenic potential of Panduratin A (PA), a natural chalcone isolated from Boesenbergia rotunda by using both in vitro and in vivo assays.PA exerted selective cytotoxicity on human umbilical vein endothelial cells (HUVECs) with IC(50) value of 6.91 ± 0.85 µM when compared to human normal fibroblast and normal liver epithelial cells. Assessment of the growth kinetics by cell impedance-based Real-Time Cell Analyzer showed that PA induced both cytotoxic and cytostatic effects on HUVECs, depending on the concentration used. Results also showed that PA suppressed VEGF-induced survival and proliferation of HUVECs. Furthermore, endothelial cell migration, invasion, and morphogenesis or tube formation demonstrated significant time- and dose-dependent inhibition by PA. PA also suppressed matrix metalloproteinase-2 (MMP-2) secretion and attenuated its activation to intermediate and active MMP-2. In addition, PA suppressed F-actin stress fiber formation to prevent migration of the endothelial cells. More importantly, anti-angiogenic potential of PA was also evidenced in two in vivo models. PA inhibited neo-vessels formation in murine Matrigel plugs, and angiogenesis in zebrafish embryos.Taken together, our study demonstrated the distinctive anti-angiogenic properties of PA, both in vitro and in vivo. This report thus reveals another biological activity of PA in addition to its reported anti-inflammatory and anti-cancer activities, suggestive of PA's potential for development as an anti-angiogenic agent for cancer therapy

Role of Jak2/Stat5/Cis pathway components in zebrafish development

By utilizing the zebrafish as a research model, the function of specific cell signalling pathway components in development was investigated. This revealed new roles for the so-called Jak2/Stat5/Cis pathway in blood and sensory organ development, and a conserved prolactin pathway despite divergent functions between species

A review: antibacterial activities, antioxidant properties and toxicity profile of Centella asiatica

Centella asiatica (C. asiatica) has been widely used as traditional or alternative medicine for thousand years due to its capabilities to cure various kinds of diseases. This plant has been used widely to prepare numerous kinds of food and beverages in many countries due to its beneficial functional properties. Active compounds that contribute to its antimicrobial properties are madecassic acid, asiatic acid, madecassoside, and asiaticoside. C. asiatica extract can inhibit majorities of foodborne pathogenic and spoilage microorganisms. It also contained antioxidant properties and has been proven to have an insignificant toxicity effect on human consumption. Currently, there is an increase of interest in research development for natural antioxidants and antimicrobial agents to replace the synthetic types in the food industry. This review presents information on the antioxidant capabilities of C. asiatica and its function to inhibit, reduce or minimize microbial growth. The toxicity and safety aspects of consuming C. asiatica extract has also been highlighted to provide essential data for the development of natural preservatives