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1.
Artigo em Inglês | MEDLINE | ID: mdl-36644780

RESUMO

Background: Plant elements and extracts have been used for centuries to treat a wide range of diseases, from cancer to modern lifestyle ailments like viral infections. These plant-based miRNAs have the capacity to control physiological and pathological conditions in both humans and animals, and they might be helpful in the detection and treatment of a variety of diseases. The present study investigates the miRNA of the well-known spice Curcuma Longa and its prospective targets using a variety of bioinformatics techniques. Results: Using the integrative database of animal, plant, and viral microRNAs known as miRNEST 2.0, nine C. longa miRNAs were predicted. psRNA target service foretells the presence of 23 human target genes linked to a variety of disorders. By interacting with a variety of cellular and metabolic processes, miRNAs 167, 1525, and 756 have been found to be critical regulators of tumour microenvironment. SARS-cov2 and influenza A virus regulation have been connected to ZFP36L1 from miRNA 1525 and ETV5 from miRNA 756, respectively. Conclusions: The current cross-kingdom study offers fresh knowledge about how to increase the effectiveness of plant-based therapies for disease prevention and serves as a platform for in vitro and in vivo research development.

2.
Futur J Pharm Sci ; 8(1): 24, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35382490

RESUMO

Background: Researchers now have a new avenue to investigate when it comes to miRNA-based therapeutics. miRNAs have the potential to be valuable biomarkers for disease detection. Variations in miRNA levels may be able to predict changes in normal physiological processes. At the epigenetic level, miRNA has been identified as a promising candidate for distinguishing and treating various diseases and defects. Main body: In recent pharmacology, plants miRNA-based drugs have demonstrated a potential role in drug therapeutics. The purpose of this review paper is to discuss miRNA-based therapeutics, the role of miRNA in pharmacoepigenetics modulations, plant miRNA inter-kingdom regulation, and the therapeutic value and application of plant miRNA for cross-kingdom approaches. Target prediction and complementarity with host genes, as well as cross-kingdom gene interactions with plant miRNAs, are also revealed by bioinformatics research. We also show how plant miRNA can be transmitted from one species to another by crossing kingdom boundaries in this review. Despite several unidentified barriers to plant miRNA cross-transfer, plant miRNA-based gene regulation in trans-kingdom gene regulation may soon be valued as a possible approach in plant-based drug therapeutics. Conclusion: This review summarised the biochemical synthesis of miRNAs, pharmacoepigenetics, drug therapeutics and miRNA transkingdom transfer.

3.
J Cataract Refract Surg ; 38(5): 833-9, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22520307

RESUMO

PURPOSE: To compare incision integrity after clear corneal microcoaxial phacoemulsification using longitudinal and torsional ultrasound (US). SETTING: Iladevi Cataract & IOL Research Centre, Ahmedabad, India. DESIGN: Prospective randomized experimental clinical trial. METHODS: Part 1 comprised an experimental study of rabbit eyes. Group 1 received longitudinal US. Group 2 received torsional US. The right eye of each rabbit served as a control. Samples were processed for histomorphology and collagen I denaturation by immunofluorescence. Part 2 comprised a clinical trial of patients. Group 1 received torsional US. Group 2 received longitudinal US. At the end of surgery, trypan blue 0.0125% was instilled. After 2 minutes, 0.1 mL of aqueous was aspirated and its optical density measured. RESULTS: In part 1, incision histomorphology was comparable in both modalities. Collagen denaturation tests (immunofluorescence, dot blot analysis) showed no irregularity in collagen arrangement in either group. In Group 2, Descemet membrane was detached and endothelial cells were minimal at the roof of the incision. In part 2, trypan blue ingress into the anterior chamber was significantly greater in Group 1 than in Group 2 (mean 3.40 + 0.6 log units versus and 3.77 + 0.82 log units) (P<.007). CONCLUSIONS: Incision histomorphology in the torsional group showed minimal Descemet membrane detachment and minimal endothelial cell loss at the roof of the incision. Minimal ingress of trypan blue into the anterior chamber was observed with torsional US, indicating better wound integrity than with longitudinal US. FINANCIAL DISCLOSURE: No author has a financial or proprietary interest in any material or method mentioned.


Assuntos
Córnea/diagnóstico por imagem , Córnea/cirurgia , Facoemulsificação/métodos , Retalhos Cirúrgicos/patologia , Animais , Humor Aquoso/metabolismo , Colágeno Tipo I/metabolismo , Corantes/farmacocinética , Perda de Células Endoteliais da Córnea/diagnóstico , Lâmina Limitante Posterior/patologia , Método Duplo-Cego , Feminino , Técnica Indireta de Fluorescência para Anticorpo , Humanos , Implante de Lente Intraocular , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Coelhos , Azul Tripano/farmacocinética , Ultrassonografia , Cicatrização
4.
J Cataract Refract Surg ; 34(4): 670-6, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18361992

RESUMO

PURPOSE: To compare the changes in the histomorphology and immunofluorescence of collagen type I in clear corneal incisions (CCIs) at the end of bimanual and coaxial phacoemulsification in rabbits. SETTING: Iladevi Cataract and IOL Research Centre, Ahmedabad, India. METHODS: In this randomized study, the left eye of 30 rabbits had bimanual phacoemulsification through 1.2 mm CCIs for phaco tip access accompanied by an additional 1.4 mm incision for irrigating chopper access or coaxial phacoemulsification through a 2.6 mm single-plane CCI. The right eyes acted as controls. Samples collected at the end of surgery were processed for histomorphology using periodic acid-Schiff-hematoxylin staining and immunofluorescence localization of type I collagen. RESULTS: Incisions exposed to bimanual phacoemulsification had loss of epithelium, stromal fiber shrinkage, keratocyte nuclei fragmentation and condensation, ragged tunnel margins, and Descemet membrane and endothelial cell loss. The changes were minimal or absent in incisions exposed to coaxial phacoemulsification. Immunofluorescence showed a loss of parallel arrangement of type I collagen fibers in bimanual phacoemulsification incisions, while the fibers were well preserved in coaxial phacoemulsification incisions. The changes were more prominent in the roof of the incision tunnel than in the floor. CONCLUSIONS: Corneal incisions for bimanual phacoemulsification were more prone to damage than those for coaxial phacoemulsification. This may be attributed to the absence of a sleeve, which places the incision tunnel in direct contact with the metal phaco tip.


Assuntos
Colágeno Tipo I/metabolismo , Córnea/metabolismo , Córnea/patologia , Facoemulsificação/métodos , Animais , Córnea/cirurgia , Substância Própria/patologia , Lâmina Limitante Posterior/patologia , Endotélio Corneano/patologia , Epitélio Corneano/patologia , Técnica Indireta de Fluorescência para Anticorpo , Microscopia de Fluorescência , Coelhos , Cicatrização
5.
Int J Biomed Sci ; 3(4): 237-50, 2007 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23675049

RESUMO

Post-operative capsular opacification is a multifactorial physiological consequence of cataract surgery. Opacification involving the central posterior capsule has a significant impact on high and low contrast acuity and low contrast sensitivity. The assessment of Posterior Capsule Opacification (PCO) on cadaver eyes, experimental studies, culture models and in clinical studies has provided an understanding of its pathogenesis. The proliferation, migration and abnormal differentiation of residual lens epithelial cells and fibers in the capsular bag have been implicated in the pathogenesis of PCO. The incidence and severity of PCO correlates to the meticulous use of surgical techniques, IOL optic edge designs and IOL materials. This article summarizes the clinical studies with recommendations for retarding the development of central PCO. It discusses experiments with pharmacological agents broadly categorized as anti-inflammatory, immuno-modulating, antiproliferative, antiadhering, antitransdifferentiating agents for the prevention of PCO. These studies will remain critical for future endeavors undertaken for eradication of PCO.

6.
Indian J Med Sci ; 58(3): 115-21, 2004 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15051906

RESUMO

BACKGROUND: Cataract is responsible for about 10% blindness among children in India. Etiology of cataract is not well defined especially for childhood cataracts and epidemiological data for Indian population is not available in details. AIM: This study was performed to survey the causes of childhood cataracts and to identify the preventable factors in four western states of India. SETTINGS AND DESIGN: The present study is a hospital-based, prospective study on 172 consecutive pediatric cataract patients. MATERIAL AND METHODS: Type of cataract was determined using slit-lamp bio-microscopy or operation microscope after mild general anesthesia especially on very young babies. Other anomalies of eye were determined using appropriate ophthalmic instruments. Parents of the patients were interviewed in their native language using a standardized questionnaire. Biochemical and microbiological tests such as for rubella, reducing sugar and blood glucose were also performed. RESULTS: Out of 172 children, 88.4% had non-traumatic cataract and 11.6% had traumatic cataracts. Among non-traumatic cataracts, 7.2% were hereditary, 4.6% were due to congenital rubella syndrome, 15.1% were secondary and 73.0% were undetermined. In the group of undetermined cases, during pregnancy 67% of the mother had history of illness, and 22% had taken medications during pregnancy. CONCLUSIONS: Our study shows that nearly 12% of non-traumatic cataract is due to potentially preventable causes. Health education of women to childbearing age and school children can decrease incidence of pediatric cataracts.


Assuntos
Catarata/epidemiologia , Adolescente , Catarata/etiologia , Criança , Pré-Escolar , Feminino , Humanos , Índia/epidemiologia , Lactente , Recém-Nascido , Masculino
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