Anti-Diabetic Retinopathy Potential of Noni: The beneficial effect and possible mechanism

2020 ◽  
Vol 3 (1) ◽  
pp. 01-21
Author(s):  
Faisal Ali

Noni (Morinda citrifolia L.) is being evaluated in laboratory research for its benefits as an antioxidant and immunity booster, as well as for its properties to prevent tumors and cure diabetes. The vast spread of Noni in tropical region of the globe, from America reaching to Africa and Southeast Asia, contributed in enhancing its usage and potency due to the diversity in harvest zone. Noni parts comprise fruits, seeds, leaves, and flowers are being used for individual nutritional and therapeutical values. Nevertheless, the fruit is widely characterized to contain the most valuable bioactive substances. On the other hand, diabetic retinopathy (DR) is a microvascular disorder impacting the small blood vessels in the retina, which includes microaneurysms, retinal hemorrhages, and hard exudates results from prolonged exposure to high blood glucose levels. The anti-diabetes effect of Noni extract and juice has been examined but the beneficial role of Noni and its potential mechanisms against the development of diabetic retinopathy phenotype is still ambiguous. This review, therefore, will discusses in details the pharmacological actions of M. citrifolia fruit, along with their isolated phytochemical compounds on diabetic retinopathy markers, through describing the conducted in vitro and in vivo studies as well as clinical data.

2019 ◽  
Vol 20 (14) ◽  
pp. 3503 ◽  
Author(s):  
Mario D. Toro ◽  
Katarzyna Nowomiejska ◽  
Teresio Avitabile ◽  
Robert Rejdak ◽  
Sarah Tripodi ◽  
...  

A large number of preclinical studies suggest the involvement of resveratrol in the prevention and treatment of eye diseases induced by oxidative stress and inflammation. We tested the hypothesis that resveratrol influences many pathways of in vitro and in vivo models of diabetic retinopathy through a systematic literature review of original articles. The review was conducted in accordance with the PRISMA guidelines. A literature search of all original articles published until April 2019 was performed. The terms “resveratrol” in combination with “retina”, “retinal pathology”, “diabetic retinopathy” and “eye” were searched. Possible biases were identified with the adopted SYRCLE’s tool. Eighteen articles met inclusion/exclusion criteria for full-text review. Eleven of them included in vitro experiments, 11 studies reported in vivo data and 3 studies described both in vitro and in vivo experiments. Most of the in vivo studies did not include data that would allow exclusion of bias risks, according to SYRCLE’s risk of bias tool. Both in vitro and in vivo data suggest anti-apoptotic, anti-inflammatory and anti-oxidative actions of resveratrol in models of diabetic retinopathy. However, results on its anti-angiogenic effects are contradictory and need more rigorous studies.


Nutrients ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 771 ◽  
Author(s):  
Maria Grazia Rossino ◽  
Giovanni Casini

Diabetic retinopathy (DR) is one of the most common complications of diabetes mellitus and is characterized by degeneration of retinal neurons and neoangiogenesis, causing a severe threat to vision. Nowadays, the principal treatment options for DR are laser photocoagulation, vitreoretinal surgery, or intravitreal injection of drugs targeting vascular endothelial growth factor. However, these treatments only act at advanced stages of DR, have short term efficacy, and cause side effects. Treatment with nutraceuticals (foods providing medical or health benefits) at early stages of DR may represent a reasonable alternative to act upstream of the disease, preventing its progression. In particular, in vitro and in vivo studies have revealed that a variety of nutraceuticals have significant antioxidant and anti-inflammatory properties that may inhibit the early diabetes-driven molecular mechanisms that induce DR, reducing both the neural and vascular damage typical of DR. Although most studies are limited to animal models and there is the problem of low bioavailability for many nutraceuticals, the use of these compounds may represent a natural alternative method to standard DR treatments.


2016 ◽  
Vol 10 (2) ◽  
pp. 172-186
Author(s):  
Agus Sudibyo ◽  
Tiurlan F. Hutajulu

Morinda Citrifolia, L.  known as Noni or Mengkudu is planting belonging to the family of Rubiaceae. A number of major components have been identified in leaves, roots, fruits of Noni plant, such as scopoletin, octanoic acid, vitamin C, iridoid, terpenoids, alkaloids, anthraquinones, beta-sitosterol, carotene, vitamin A, flavone glycosides, alizarin, amino acids, acubin, austin, caproic acid, caprylic acid and putative procyonine. Its use as a botanical dietary supplement has grown tremendously in recent years. The results of epidemiological studies suggest that the Noni consumption may help prevent several chronic diseases, including cancer disease, cardiovascular disease, type 2 diabetes mellitus, heart disease, artherosclerosis, blood vessel problem, gastric ulcer, drug addiction, muscle ached and pein. Several studies have also demonstrated anti-inflammatory, antioxidant, antimicrobial, analgesic, and immunologicalactivity. Based on a toxicological assessment, Noni juice was considered as safe. Although, a large number of in vitro and to a certain extent, and in vivo studies demonstrated a range potentially beneficial effects, clinical information data are still lacking completely. Therefore, to what extent the information findings from experimental pharmacological studies is not complete at present, so this article reviews potential health benefits for consumptions, its biological effects and looking for a new informationthat needs to be explored in detail before a recommendation can be madeABSTRAKMorinda citrofolia, L (mengkudu) merupakan jenis tanaman yang termasuk dalam golongan Rubiaceadan buahnya dikenal dengan nama Noni atau mengkudu. Beberapa komponen utama dalam tanaman tersebut telah diidentifikasi, mulai dari bagian akar, daun, dan buah, seperti kandungan scopoletin, asam oktanoad, vitamin C, iridoid, terpenoid, alkaloid, anthraquinon, beta-sitosterol, karotene, vitamin A, flavon glikosida, alizarin, asam amino, acubin, austin, asam kaproat, asam kaprilat dan putativ prokseronin. Buah tersebut akhir-akhir ini telah sukses banyak dimanfaatkan sebagai diet suplemen. Hasil studi secara epidemiologi menyatakan bahwa konsumsi mengkudu dapat membantu mencegah beberapa penyakit kronis, seperti penyakit kanker, kardiovaskular, diabetes tipe 2, penyakit jantung, artherosklerosis, masalah pembuluh darah, pencernaan, dan sakit otot. Beberapa studi juga menunjukkan bahwa mengkudu dapat berfungsi sebagai anti inflamasi, antioksidan, antimikroba, analgesik, dan bersifat immunlogis.Berdasarkan kajian secara toksikologi, buah dan jus mengkudu dinyatakan aman untuk dikonsumsi.  Penelitian secara in vitro pada beberapa jenis penyakit tertentu sedang diperluas, dan penelitian secara in vivo menunjukkan bahwa mengkudu mempunyai rentang potensi pengaruh yang baik bagi kesehatan, meskipun data informasinya secara klinis kurang lengkap. Oleh karena itu, untuk mengetahui apa yang sudah ditemukan dari hasil penelitian secara farmalogis yang belum lengkapsaat ini, maka dalam tulisan ini membahas potensi keuntungan kesehatan bila dikonsumsi, pengaruh biologinya dan pencarian informasibaru yang  perlu dikaji lebih rinci sebelum rekomendasi ditetapkan.Kata kunci: Mengkudu (Morinda citrifolia, L), pangan fungsional, rempah medis. 


2020 ◽  
Vol 9 (1) ◽  
pp. 902-907

Disease can occur due to alterations in many physiological processes. A variety of factorsare known to be involved in the progression of cancer, a chronic diseasethat occurs due to permissible proliferative signaling, avoiding growth suppressors, resisting cell death, allowing replicative immortality, induction of angiogenesis, and inducing invasion and metastasis, along with reprogramming of metabolic pathways involved in energy production and avoiding the host immune response for cell destruction. Treatment of such a multifactorial disease has very less cure rate because of the singular agents tried in the past for targeting. Molecular level studies with deeper insight are urgently neededthat focus on the most promising herbal-derived bioactive substances for which thorough research was carried out in the literature in various data-bases such as PUB-MED, MEDLINE, SCOPUS indexed journals etc. to look for systematic reviews of the protocols or data interpretation, natural drug/immunological properties and validation. As immune system plays avery important role in the proliferation or suppression of cancer and other autoimmune diseases, It is the dire need to study the effect of such natural compound on the immune system so that a possible drug target or epitope can be identified for the treatment of such diseases. In nutshell there are many nonclinical in vitro and in vivo studies on herbal medicines which commonly supports the traditional therapeutic claims. It has been seen from the previos studies in literature that the yield and composition of bioactive compounds derived from plants are dependent upon the production source,culturing conditions and extraction protocols.Therefore appropriate optimization conditions would certainly assist the medical and scientific fraternity to accept herbal products as potential candidates for cancer treatment. In this article we explored the different natural products, their immunological effects concerning cancer with no or negligible side effects. However,one has to look for potential herb–drug or herb-epitope interactions and how immune system responds to such drugs.


Drug Research ◽  
2020 ◽  
Vol 70 (07) ◽  
pp. 298-309
Author(s):  
Soumya Singh ◽  
Poonam Kushwaha ◽  
Sujeet Kumar Gupta

AbstractDiabetic retinopathy is a microvascular complication in diabetes that affects eyes and is responsible for most visual impairment in diabetic patients. Diabetic retinopathy affects up to 80% of those who have had diabetes for 20 years or more. At least 90% of new cases could be reduced with proper treatment and monitoring of the eyes. The longer a person has diabetes, the higher his or her chances of developing diabetic retinopathy. Hence, it compels need for its prevention and cure. There is an increasing interest in natural products in pharmacotherapy as the chemical diversity of natural products has better matches than the diversity of synthetic compounds. The current review summarises the potential of leading traditional herbs like Azadirachta indica, Ginkgo biloba, Anisodus tanguticus, Pinus pinaster, Salvia miltiorrhiza, Stephania tetrandra and Gymnema sylvestre in the management and potential reversal of DR-related pathogenesis. It also discusses the probable mechanism of actions, which are based on epidemiological, in-vitro and in-vivo studies carried out within past few years. Graphical Abstract.


2013 ◽  
Vol 86 (11) ◽  
pp. 1603-1613 ◽  
Author(s):  
Gabriella Lupo ◽  
Carla Motta ◽  
Giovanni Giurdanella ◽  
Carmelina Daniela Anfuso ◽  
Mario Alberghina ◽  
...  

2011 ◽  
Vol 39 (01) ◽  
pp. 15-27 ◽  
Author(s):  
Zengtao Xu ◽  
Xiuping Chen ◽  
Zhangfeng Zhong ◽  
Lidian Chen ◽  
Yitao Wang

Ganoderma lucidum (G. lucidum), a basidiomycete white rot fungus, has long been prescribed to prevent and treat various human diseases, particularly in China, Japan, and Korea. Several classes of bioactive substances have been isolated and identified from G. lucidum, such as triterpenoids, polysaccharides, nucleosides, sterols, and alkaloids, among others. This paper examines the potential role of G. lucidum polysaccharide (GLPS) in tumor therapy and the possible mechanisms involved. Both in vitro and in vivo studies suggested that the anti-tumor activities of GLPS are mediated by its immunomodulatory, anti-angiogenic, and cytotoxic effects. GLPS affects immune cells and immune-related cells including B lymphocytes, T lymphocytes, dendritic cells, macrophages, and natural killer cells. In addition, recent data also suggest that GLPS suppresses tumorigenesis or inhibits tumor growth through direct cytotoxic effect and anti-angiogenic actions. However, many questions still need to be answered before both G. lucidum and GLPS can be widely accepted and used as anti-tumor agents.


2001 ◽  
Vol 5 (8) ◽  
pp. 645-651
Author(s):  
M. Peeva ◽  
M. Shopova ◽  
U. Michelsen ◽  
D. Wöhrle ◽  
G. Petrov ◽  
...  
Keyword(s):  

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S198-S198
Author(s):  
Joseph R Meno ◽  
Thien-son K Nguyen ◽  
Elise M Jensen ◽  
G Alexander West ◽  
Leonid Groysman ◽  
...  

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