scholarly journals Antioxidant Activities and Phytochemicals of Leaf Extracts from 10 NativeRhododendronSpecies in Taiwan

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Chi-Yang Lin ◽  
Lei-Chen Lin ◽  
Shang-Tse Ho ◽  
Yu-Tang Tung ◽  
Yen-Hsueh Tseng ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Bioactive Compounds ◽  
Antioxidant Activities ◽  
Ornamental Plants ◽  
Natural Health Products ◽  
Natural Health ◽  
Leaf Extracts ◽  
Methanolic Extracts ◽  
The World ◽  
Health Products

Rhododendron, one of the most famous ornamental plants in the world, is traditionally a medicinal plant. However, the potential bioactivities of nativeRhododendronin Taiwan have not been completely studied. In this study, the results revealed thatRhododendron pseudochrysanthumexhibited the best antioxidant activities among 10 nativeRhododendronspecies in Taiwan. Furthermore, based on a bioactivity-guided isolation principle, nine specific phytochemicals were isolated and identified as (2R,3S)-catechin (1), (2R,3R)-epicatechin (1′), (2R,3R)-dihydromyricetin 3-O-β-l-arabinopyranoside (2), (2S,3S)-taxifolin 3-O-β-l-arabinopyranoside (2′), (2R,3R)-taxifolin 3-O-β-l-arabinopyranoside (3), myricetin 3-O-β-d-glucopyranoside (3′), rutin (4), hyperoside (5), and quercitrin (6). Of these compounds,2and3were found to be major bioactive compounds, and their concentrations in then-butanol (BuOH) fraction were determined to be 52.0 and 67.3 mg per gram, respectively. These results demonstrated that methanolic extracts ofRhododendron pseudochrysanthumleaves have excellent antioxidant activities and great potential as a source for natural health products.

scholarly journals Preliminary assessment of the conservation status of medicinal plant species in Canada

Botany ◽  
2021 ◽  
Author(s):  
Lauren A E Erland ◽  
Christina E Turi ◽  
Susan Murch
Keyword(s):  
Medicinal Plants ◽  
Medicinal Plant ◽  
Plant Species ◽  
Method Development ◽  
Conservation Status ◽  
Medicinal Plant Species ◽  
Natural Health Products ◽  
Natural Health ◽  
Preliminary Assessment ◽  
Health Products

Natural health products in North America are a 9.6 billion US dollar industry that has seen increased demands particularly in products for immune support and anti-viral supplements in response to the Covid-19 pandemic. It has been estimated that ≈40% of the plant raw materials used in natural health products are wild-harvested each year but exact data is missing for many species. Our data show that there are at least 1445 medicinal plant species harvested for commercial products in Canada and 1217 of these are native species. Medicinal plants and non-timber forest crops are also increasingly impacted by climate change as suitable growing areas migrate. In order to ensure long term species survival in the wild, it is necessary to generate accurate information about distribution of wild populations, need for conservation and sustainable method development. Our objective was to provide a preliminary assessment on the conservation status of Canadian medicinal plants by analysis of the available data resources.

scholarly journals Science Across Borders: 5th Annual Natural Health Product Research Conference—March 26–29, 2008, Toronto, Canada

2010 ◽  
Vol 7 (3) ◽  
pp. 391-395
Author(s):  
Muhammad Nabeel Ghayur
Keyword(s):  
Research Society ◽  
Molecular Medicine ◽  
Great Success ◽  
Natural Health Products ◽  
Health Product ◽  
Natural Health Product ◽  
Natural Health ◽  
The World ◽  
Health Products ◽  
Analytical Approaches

Canada is experiencing a growing interest in the use of alternative therapies and products particularly natural health products (NHP). In 1997, Canadians spent around C$ 2 billion on NHP. In an attempt to catch with this popularity of NHP use, Canadian researchers and administrators from academia, industry and government jointly established the Natural Health Product Research Society of Canada (NHPRS). Since its formation, NHPRS has been organizing an annual meeting which brings together world renowned researchers and experts in the area of NHP research. For 2008, the annual NHPRS meeting took place in Toronto from the 26th to 29th of March with a focus on ‘Science Across Borders: Global Natural Health Products Research’. The scientific program was spread into three days of plenary lectures and oral presentations. The different sessions containing these talks were on: ethnobotany around the world; chemical analysis of NHP; product standards and quality control; ethnomedicine; novel analytical approaches; systemic research, nutrisciences and molecular medicine; and drug development from NHP. The meeting proved to be a great success in terms of the speakers that were invited and based on the data that was presented which highlighted recent research taking place in the field of NHP not only in Canada but from many parts of the world.

scholarly journals Current Advancements and Novel Strategies in the Treatment of Metastatic Melanoma

2021 ◽  
Vol 20 ◽  
pp. 153473542199007
Author(s):  
Siddhartha Sood ◽  
Rahul Jayachandiran ◽  
Siyaram Pandey
Keyword(s):  
Metastatic Melanoma ◽  
Complementary Therapy ◽  
Natural Health Products ◽  
Combination Therapies ◽  
Natural Health ◽  
The Past ◽  
Health Products ◽  
Melanoma Treatment ◽  
New Research

Melanoma is the deadliest form of skin cancer in the world with a growing incidence in North America. Contemporary treatments for melanoma include surgical resection, chemotherapy, and radiotherapy. However, apart from resection in early melanoma, the prognosis of patients using these treatments is typically poor. In the past decade, there have been significant advancements in melanoma therapies. Immunotherapies such as ipilimumab and targeted therapies such as vemurafenib have emerged as a promising option for patients as seen in both scientific and clinical research. Furthermore, combination therapies are starting to be administered in the form of polychemotherapy, polyimmunotherapy, and biochemotherapy, of which some have shown promising outcomes in relative efficacy and safety due to their multiple targets. Alongside these treatments, new research has been conducted into the evidence-based use of natural health products (NHPs) and natural compounds (NCs) on melanoma which may provide a long-term and non-toxic form of complementary therapy. Nevertheless, there is a limited consolidation of the research conducted in emerging melanoma treatments which may be useful for researchers and clinicians. Thus, this review attempts to evaluate the therapeutic efficacy of current advancements in metastatic melanoma treatment by surveying new research into the molecular and cellular basis of treatments along with their clinical efficacy. In addition, this review aims to elucidate novel strategies that are currently being used and have the potential to be used in the future.

scholarly journals Determination of Chemical Constituents and Antioxidant Activities of Leaves and Stems from Jatropha cinerea (Ortega) Müll. Arg and Jatropha cordata (Ortega) Müll. Arg

Plants ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 212
Author(s):  
Yeimi Cecilia Vega-Ruiz ◽  
Corina Hayano-Kanashiro ◽  
Nohemí Gámez-Meza ◽  
Luis Angel Medina-Juárez
Keyword(s):  
Antioxidant Activity ◽  
Antioxidant Activities ◽  
Biological Effects ◽  
Chemical Constituents ◽  
Weather Conditions ◽  
Antioxidant Compounds ◽  
Leaf Extracts ◽  
Methanolic Extracts ◽  
Northwestern Region ◽  
High Concentrations

Jatropha species have been shown to be an important source of secondary metabolites with different biological effects. Jatropha cinerea (Ortega) Müll. Arg and Jatropha cordata (Ortega) Müll. Arg are distributed in the Northwestern region of Mexico, are adapted to extreme weather conditions and are widely used (stems, leaves, and sap) in traditional medicine. The aim of the present study was to carry out the phytochemical characterization and the evaluation of the antioxidant activity in methanolic extracts of stems and leaves from J. cinerea and J. cordata. The compounds present in the extracts of both species were characterized by ESI-IT-MS/MS and quantified by HPLC-DAD. The results showed that the stem extracts of both species are rich in phenolic acids, while the leaf extracts are rich in flavonoids. Some of the main compounds found were gallic acid, gentisic acid, 3,4-Dihydroxybenzoic acid, vitexin, isovitexin, and catechol. Both species showed high concentrations of phenols and total flavonoids and antioxidant activity. J. cordata showed the highest antioxidant capacity and the highest concentration of phenolic compounds. Overall, both Jatropha species are a natural source of antioxidant compounds with potential biotechnological uses.

Advising Cancer Patients on Natural Health Products— A Structured Approach

2004 ◽  
Vol 38 (9) ◽  
pp. 1406-1411 ◽  
Author(s):  
Mário L de Lemos ◽  
Leela John ◽  
Lynne Nakashima ◽  
Robin K O'Brien ◽  
Suzanne CM Taylor
Keyword(s):  
Cancer Patients ◽  
Natural Health Products ◽  
Natural Health ◽  
Health Products ◽  
Structured Approach

scholarly journals Molecular targets of natural health products in arthritis

2011 ◽  
Vol 13 (1) ◽  
pp. 102 ◽  
Author(s):  
Sarah Khalifé ◽  
Muhammad Zafarullah
Keyword(s):  
Molecular Targets ◽  
Natural Health Products ◽  
Natural Health ◽  
Health Products

scholarly journals Strategic Responses to New Zealand-China Free Trade Agreement: A Case Study of New Zealand Natural Health Products Industry

2021 ◽  
Author(s):  
◽  
Jiang Chang
Keyword(s):  
New Zealand ◽  
Free Trade Agreement ◽  
Trade Agreement ◽  
Business Environment ◽  
Natural Health Products ◽  
Competitive Advantages ◽  
Chinese Market ◽  
Natural Health ◽  
Health Products ◽  
Resources And Capabilities

<p>The rise of global consumption, as well as technological innovation in transportation and telecommunications, have increased international exchange of goods, services and factors of production. Economic globalization in terms of production and markets has been accompanied by an unprecedented intensification of economic and financial linkages within geographic regions. The world economy is shifting towards greater regional economic integration. As open and dynamic economies, New Zealand and China heavily rely on international trade and investment to stimulate economic growth. Strengthened international linkages and improved access to markets are major economic strategies for both countries. As they have been committed to building up longstanding and healthy bilateral trade and economic partnerships, these two countries signed a free trade agreement (FTA) that aims to liberalize and facilitate trade in goods, services and investment, and improve the business environment and strengthen cooperation in a wide range of economic areas. From the perspective of New Zealand's businesses, the FTA will not only improve the business environment, and open up market access opportunities, but it will also pose threats. To take advantage of these opportunities, neutralize threats, and consequently achieve a stronger market position in the Chinese marketplace, New Zealand's businesses must strategically respond to the fast-changing environment arising from the FTA. Due to the special meaning of the FTA to New Zealand's economic growth and the significance of the Chinese market to New Zealand's businesses operating in China, it is important to explore how New Zealand's firms perceive the New Zealand-China FTA; and what strategic decisions and adjustments they have made or they are going to make in response to shifts in the business environment arising from the FTA. Besides several studies with limited empirical evidence were conducted at the macro-economic level by some of interested groups such as New Zealand Ministry of Foreign Affairs and Trade during the FTA negotiations, little research has been conducted to examine the impact of the New Zealand-China FTA on New Zealand individual companies' business strategic performance. Building on case studies of two representative companies in the New Zealand natural health products industry, this study aims to discover the nature of salient companies under the New Zealand-China FTA and to ascertain what particular patterns of strategy and performance these companies will adopt in response to trade liberalization. The findings of this study suggest that: 1) With the New Zealand-China FTA, the Chinese fast-growing market is typical of the mix of the opportunities and challenges facing New Zealand's businesses. The FTA provides them with a strong incentive to undertake strategic adjustments for further development in the Chinese market. 2) Strategic adjustments made by a firm depend upon the nature of its firm-specific advantages and country-specific advantages, as well as its existing competitive advantages. Firms that are able to secure their resources and capabilities necessary to exploit opportunities and counter threats are more likely to gain international competitive advantages; 3) Small firms with limited resources and capabilities are more likely to engage in the formation of strategic alliances in order to strengthen their competitive positions both domestically and internationally.</p>

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