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1.
Biofouling ; 39(9-10): 962-979, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38009008

RESUMO

The current work aims to develop a shikonin and tea tree oil loaded nanoemulsion system stabilized by a mixture of GRAS grade surfactants (Tween 20 and monoolein) and a cosurfactant (Transcutol P). This system was designed to address the poor aqueous solubility and photostability issues of shikonin. The authenticity of shikonin employed in this study was confirmed using nuclear magnetic resonance (NMR) spectroscopy. The optimized nanoemulsion exhibited highly favorable characteristics in terms of zeta potential (-23.8 mV), polydispersity index (0.216) and particle size (22.97 nm). These findings were corroborated by transmission electron microscopy (TEM) micrographs which confirmed the spherical and uniform nature of the nanoemulsion globules. Moreover, attenuated total reflectance (ATR) and X-ray diffraction analysis (XRD) analysis affirmed improved chemical stability and amorphization, respectively. Photodegradation studies were performed by exposing pure shikonin and the developed nanoemulsion to ultraviolet light for 1 h using a UV lamp, followed by high performance liquid chromatography (HPLC) analysis. The results confirmed that the developed nanoemulsion system imparts photoprotection to pure shikonin in the encapsulated system. Furthermore, the research investigated the effect of the nanoemulsion on biofilms formed by Candida albicans and methicillin resistant Staphylococcus aureus (MRSA). Scanning electron microscopy, florescence microscopy and phase contrast microscopy unveiled a remarkable reduction in biofilm area, accompanied by disruptions in the cell wall and abnormalities on the cell surface of the tested microorganisms. In conclusion, the nanoencapsulation of shikonin with tea tree oil as the lipid phase showcased significantly enhanced antimicrobial and antibiofilm potential compared to pure shikonin against resistant strains of Candida albicans and Staphylococcus aureus.


Assuntos
Anti-Infecciosos , Staphylococcus aureus Resistente à Meticilina , Naftoquinonas , Óleo de Melaleuca , Candida albicans , Óleo de Melaleuca/farmacologia , Staphylococcus aureus , Biofilmes , Anti-Infecciosos/farmacologia , Testes de Sensibilidade Microbiana
2.
Neurology ; 101(23): e2388-e2400, 2023 Dec 04.
Artigo em Inglês | MEDLINE | ID: mdl-37940550

RESUMO

BACKGROUND AND OBJECTIVES: Persons with epilepsy are afflicted with comorbidities such as stigma, anxiety, and depression which have a significant impact on their quality of life. These comorbidities remain largely unaddressed in resource-limited countries. This randomized controlled trial (RCT) aimed to investigate whether yoga and psychoeducation were effective in reducing felt stigma (primary outcome), neuropsychiatric outcomes, and seizure frequency, as compared with sham yoga and psychoeducation in persons with epilepsy. METHODS: This was an assessor-blinded, sham yoga-controlled RCT. Patients clinically diagnosed with epilepsy, aged 18-60 years, and scoring higher than the cutoff score for felt stigma as measured by the Kilifi Stigma Scale (KSS) in our population were randomly assigned to receive either yoga therapy plus psychoeducation (intervention) or sham yoga therapy plus psychoeducation (comparator) for a duration of 3 months. The primary outcome was a significant decrease in felt stigma as compared with the comparator arm as measured by the KSS. Primary and secondary outcomes (seizure frequency, quality of life, anxiety, depression, mindfulness, trait rumination, cognitive impairment, emotion regulation) were assessed at baseline, 3 months, and 6 months. Parametric/nonparametric analysis of covariance and the χ2 test were used to compare the 2 arms. RESULTS: A total of 160 patients were enrolled in the trial. At the end of the follow-up period (6 months), the intervention arm reported significant reduction in felt stigma as compared with the control arm (Cohen's d = 0.23, 95% CI -0.08 to 0.55, p = 0.006). Significantly higher odds of >50% seizure reduction (odds ratio [OR] 4.11, 95% CI 1.34-14.69, p = 0.01) and complete seizure remission (OR 7.4, 95% CI 1.75-55.89, p = 0.005) were also observed in the intervention group. The intervention group showed significant improvement in symptoms of anxiety, cognitive impairment, mindfulness, and quality of life relative to the control group at the end of follow-up period (p < 0.05). DISCUSSION: Yoga can alleviate the burden of epilepsy and improve the overall quality of life in epilepsy by reducing perceived stigma. TRIAL REGISTRATION INFORMATION: Clinical Trials Registry of India (CTRI/2017/04/008385). CLASSIFICATION OF EVIDENCE: This study provides Class I evidence that yoga reduces felt stigma in adult patients with epilepsy.


Assuntos
Epilepsia , Yoga , Adulto , Humanos , Epilepsia/terapia , Emoções , Convulsões/terapia , Ansiedade/terapia , Qualidade de Vida
3.
Indian J Pharmacol ; 55(1): 59-61, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36960522

RESUMO

Subtenon's block is commonly used to achieve akinesia, analgesia, and anesthesia for ophthalmic surgeries. This case study detailed a rare hypersensitivity report in a 65-year-old female who had underwent manual small incision cataract surgery under subtenon's anesthesia (STA) in the left eye. On postoperative day 1, she presented with acute onset proptosis, periorbital edema, conjunctival chemosis, and restriction of extraocular movements. The pupillary reaction and dilated fundus examination were normal. A differential diagnosis of orbital cellulitis, Mucormycosis, and hyaluronidase hypersensitivity (HH) was considered. Since the patient was afebrile, and pupillary reactions, ENT, neurological, and fundus examination were normal, the diagnosis was narrowed down to delayed HH. The patient was managed with a 1 cc IV injection of dexamethasone once a day for 3 days, along with routine postoperative drugs. As per detailed literature review, this is probably a second case report of delayed HH post-STA.


Assuntos
COVID-19 , Hialuronoglucosaminidase , Feminino , Humanos , Idoso , Hialuronoglucosaminidase/uso terapêutico , Pandemias , Anestesia Local
4.
Chin Herb Med ; 14(4): 511-527, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36405061

RESUMO

Alkannin/shikonin (A/S) and their derivatives are naturally occurring naphthoquinones majorly found in Boraginaceae family plants. They are integral constituents of traditional Chinese medicine Zicao (roots of Lithospermum erythrorhizon). In last two decades significant increase in pharmacological investigations on alkannin/shikonin and their derivatives has been reported that resulted in discovery of their novel mechanisms in various diseases and disorders. This review throws light on recently conducted pharmacological investigations on alkannin/shikonin and their derivatives and their outputs. Various analytical aspects are also discussed and brief summary of patent applications on inventions containing alkannin/shikonin and its derivatives is also provided.

5.
J Psychosoc Oncol ; 40(3): 331-346, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34842069

RESUMO

Purpose: Depression is a major mental disorder and has drastic effects on people suffering from other terminal illnesses like cancer. Many patients struggling with chronic or fatal illnesses rely on spirituality to cope. Spirituality in Indian culture has always been a vital component in indigenous health systems.Objective: To determine the relationship between spirituality and depression among patients with cancer visiting a tertiary care institute of Uttarakhand State in northern India. Design: A descriptive cross-sectional survey.Sample: A total of 103 cancer patients visiting inpatient and outpatient departments of a selected tertiary care institute of Uttarakhand state of northern India. Methods: Participants were administered the socio-demographic proforma, Patient Health Questionnaire (PHQ-9) (Kroenke, Spitzer, and Williams, 2001), System of Belief Inventory (SBI-15R). Findings: The mean score of depression among cancer patients was 9.12±6.537 (CI, 7.84-10.39). Patients with high spirituality have minimal or no depression. We found a statistically significant negative correlation between depression and spirituality (r=-0.209, p=0.05).Conclusions: Health care professionals can incorporate spirituality in caring for cancer patients to develop a positive outlook on living despite the illness. Implications for Psychosocial Providers Or Policy: Establishing a spiritual support program as an integral part of a multidisciplinary approach can better cancer treatment in the Indian setting.


Assuntos
Neoplasias , Espiritualidade , Estudos Transversais , Depressão , Humanos , Índia , Neoplasias/psicologia , Neoplasias/terapia , Atenção Terciária à Saúde
6.
J Cosmet Laser Ther ; 21(6): 332-342, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31451001

RESUMO

Objective: The objective of current study to investigate the photo protective potential of synbiotic formulation comprising of prebiotic and probiotic. Methods: Selenium nanoparticles were synthesized by chemical reduction method and investigated for physical-chemical properties including morphology, physical state, and free radical scavenging potential. Selection of probiotic biomass was made on the free radical scavenging potential by using NO assay. A topical w/o emulsion-based cream was prepared with screened ingredients to achieve a stable product with optimum free radical scavenging potential. The finished product was investigated for various mechanical, physiochemical, and viscoelastic characteristics. The SPF of optimized formulation was determined in UV-stimulated Wistar rat model. Results: Results indicated that the finished product shows nanoscale feature of elemental selenium. Cream comprising of potential free radical reagent (Selenium nanoparticles with IC50 50.097 µg/ml and biomass of Lactobacillus rhamnosus have IC50 61.63 µg/ml) exhibits a SPF of 29.77. Optimized skin care formulation has desirable physiochemical and viscoelastic properties required for topical application. Histopathology and Draize test indicated the finished product does not show any sign of skin toxicity. Conclusion: Results inferred that topical formulation combining the features of selenium and probiotic biomass offer an effective alternative for the treatment of sunburn complications.


Assuntos
Queimadura Solar/terapia , Simbióticos/administração & dosagem , Administração Cutânea , Animais , Antioxidantes/administração & dosagem , Emulsões , Sequestradores de Radicais Livres/metabolismo , Lactobacillus , Nanopartículas/química , Tamanho da Partícula , Ratos , Ratos Wistar , Selênio/administração & dosagem , Higiene da Pele , Fator de Proteção Solar
7.
Int J Health Policy Manag ; 7(12): 1138-1144, 2018 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-30709089

RESUMO

BACKGROUND: Financial constraints, social taboos and beliefs in alternative medicine are common reasons for delaying or not considering treatment for hepatitis C in India. The present study was planned to analyze the impact of non-banking interest free loan facility in patients affected with hepatitis C virus (HCV) in North India. METHODS: This one year observational, retrospective study was conducted in Department of Gastroenterology (January 2012-December 2013), Dayanand Medical College and Hospital Ludhiana, to evaluate the impact of program titled "Sambhav" (which provided non-banking financial assistance and counselor services) on treatment initiation and therapeutic compliance in HCV patients. Data of fully evaluated patients with chronic hepatitis, and/or cirrhosis due to HCV infection who were treated with Peginterferon alfa and ribavirin (RBV) combination during this duration (2012-2013) was collected from patient medical records and analyzed. In the year 2012, eligible patients who were offered antiviral treatment paid for treatment themselves, while in 2013, 'Sambhav' program was launched and this provided interest free financing by non-banking financial company (NBFC) for the treatment of HCV in addition to free counselor services for disease management. The treatment initiation and compliance rates were compared between the patients (n = 585) enrolled in 2013 who were offered 'Sambhav' assistance and those enrolled in 2012 (n = 628) when 'Sambhav' was not available. RESULTS: Introduction of Sambhav program improved the rates of treatment initiation (59% in 2013 vs. 51% in 2012, P=.004). Of the 585 eligible patients offered 'Sambhav' assistance in 2013, 233 patients (39.8%) applied but 106/233 (45.4%) received assistance. Antiviral therapy was started in 93/106 (87.7%) of these patients, while only 52 (42.5%) of 127 patients whose applications were rejected underwent treatment. Compliance to antiviral therapy also improved with the introduction of 'Sambhav' program (87.7% vs. 74.1%, P=.001). CONCLUSION: 'Sambhav' program had significant impact on the initiation of antiviral therapy by overcoming the financial hurdles. The free counselor services helped to mitigate social taboos and imparted adequate awareness about the disease to the patients. Initiatives like 'Sambhav' can be utilized for improving healthcare services in developing countries, especially for chronic diseases.


Assuntos
Antivirais/uso terapêutico , Aconselhamento/organização & administração , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Aceitação pelo Paciente de Cuidados de Saúde/estatística & dados numéricos , Polietilenoglicóis/uso terapêutico , Antivirais/economia , Conselheiros/organização & administração , Quimioterapia Combinada , Feminino , Hepatite C Crônica/economia , Humanos , Índia , Interferon-alfa/economia , Masculino , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Polietilenoglicóis/economia , Anos de Vida Ajustados por Qualidade de Vida , Proteínas Recombinantes/economia , Proteínas Recombinantes/uso terapêutico , Medicina Estatal , Resultado do Tratamento
8.
Oncol Nurs Forum ; 44(4): 457-464, 2017 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-28632241

RESUMO

PURPOSE/OBJECTIVES: To describe nurse-caregiver communication on the day of patient death.
. DESIGN: A descriptive secondary analysis of 44 audio-recorded home hospice nursing visits on day of death.
. SETTING: Nine hospices in Utah, Oregon, and Massachusetts.
. SAMPLE: 42 caregiver-patient dyads, 27 hospice nurses.
. METHODS: Transcripts of audio recordings were coded for supportive nursing communication and relative time spent in physical, psychosocial, and spiritual discussion.
. MAIN RESEARCH VARIABLES: Tangible, emotional, informational, esteem, and networking supportive communication; nurses' self-reported communication effectiveness; caregiver religious affiliation.
. FINDINGS: Nurses reported that their communication skills were less effective when discussing difficult topics as compared to their overall communication effectiveness. Eleven patients died before the nursing visit, 3 died during the visit, and 30 died post-visit. Nurses primarily engaged in discussions facilitating caregiver emotional, tangible, and informational support. More informational support was observed when patient death occurred during the nursing visit. Time spent in general conversation showed that physical care conversations predominated (80% of the average overall amount of conversation time), compared to lifestyle/psychosocial discussions (14%) and spiritual discussions (6%). Spiritual discussions were observed in only 7 of 44 hospice visits. Spiritual discussions, although short and infrequent, were significantly longer, on average, for caregivers without a religious affiliation.
. CONCLUSIONS: Nurses support caregivers on the day of patient death using multiple supportive communication strategies. Spiritual discussions are minimal.
. IMPLICATIONS FOR NURSING: Communication skills programs can potentially increase self-reported communication effectiveness. Emerging acute spiritual concerns, particularly for caregivers without a previous religious affiliation, should be anticipated. Spiritual support is included in the hospice model of holistic care.


Assuntos
Atitude Frente a Morte , Cuidadores/psicologia , Comunicação , Cuidados Paliativos na Terminalidade da Vida/psicologia , Recursos Humanos de Enfermagem/psicologia , Apoio Social , Assistência Terminal/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Massachusetts , Pessoa de Meia-Idade , Oregon , Utah
9.
J Clin Diagn Res ; 9(12): XC04-XC09, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26816981

RESUMO

INTRODUCTION: Cancer is reported to cause about 0.4 million deaths annually. The cost of diagnosis and treatment of cancer in India is enormous. AIM: This Health Technology Assessment (HTA) aims to understand the role, effect on mortality and adverse event occurrence, and cost effectiveness of phytomedicine in cancer treatment. MATERIALS AND METHODS: Health technology assessment by systematic review of published literature. An electronic literature search was performed in Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Medline, PubMed, Science Direct, SCOPUS, EMBASE, LANCET, and Google Scholar databases for randomized controlled trial, observational analytical studies, case control and cohort studies pertaining to phytomedicine and herbal medicine in cancer treatment published from 1987 till 2(nd) Novemeber 2014. Overall outcome measures collected included changes in mortality and adverse event profile. Cochrane Review Manager's Risk of Bias Table was used to assess the risk of bias. RESULTS: Out of 76 studies which were screened, 14 studies involving a total of 1965 participants (817 received various forms of phytomedicine or herbal medicine in addition to conventional therapy, and 1148 received conventional therapy only) suffering from various cancers (including cancers of the breast, prostate, nasopharynx, pancreas, stomach, ovary, non-small cell lung cancer and osteosarcoma), were included in this review. In comparison with conventional therapy, phytomedicine resulted in a significant reduction in mortality: Risk Ratio (RR) 0.67 (95% Confidence Interval (CI) 0.51 to 0.90). The combination of phytomedicine with conventional therapy resulted in a significant reduction in adverse drug reactions: RR 0.62 (95% CI 0.54 to 0.71). Addition of phytomedicine to chemotherapy resulted in an increase in the annual cost of treatment by INR 1.241 Billion (US$ 19.64 Million) and prevented 25,217 deaths: the cost-effectiveness of phytomedicine is INR 49,237/death averted (US$ 779/death averted). CONCLUSION: When taken with conventional cancer treatment, phytomedicine shows clinical and cost effectiveness. Domestic manufacturing and practice of phytomedicine should be encouraged.

10.
Int J Appl Basic Med Res ; 4(2): 77-80, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25143880

RESUMO

BACKGROUND AND OBJECTIVE: The use of supplements has increased substantially in the past few decades. The present study is an effort to explore pattern of use, knowledge and attitude toward consumption of multivitamin supplements among the general public. MATERIALS AND METHODS: A descriptive cross-sectional study on 120 adult participants from the general public was conducted. The participants were interviewed and information was collected in a predesigned structured questionnaire. The data was analyzed and expressed as counts and percentages. RESULTS: Of the 120 study participants, 66 were males and 54 were females. Results revealed that 68.33% (82) of the participants were users of multivitamin supplements. Out of the users, 69.5% (57) participants consumed on the advice of doctors, 18.2% (15) were self-prescribers while 12.1% (10) relied on advice of family or friends. Among the users, 70.96% considered such supplements to be helpful. Reasons quoted for self-medication use of multivitamins were multiple such as maintenance of general health (55%), to allay weakness or fatigue (20%), to improve appetite (15%) etc. Majority of the participants were unaware regarding the correct indications for multivitamin supplementation. Regarding knowledge about the natural sources of these vitamins, as many as 76% showed ignorance. CONCLUSION: Finding from this study suggests that multivitamin use is highly prevalent and the majority of the participants were ignorant of any possible harm or drug interactions. In light of this, there is a need to adopt certain educational interventions to minimize self-directed supplement use and increase awareness regarding their correct usage.

11.
J Basic Microbiol ; 52(4): 383-9, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22052437

RESUMO

The incubation of whole Bacillus alcalophilus cells grown on a mineral supplemented medium (MSM) containing 1% (w/v) sucrose as carbon source, 1.2% (w/v) tryptone as nitrogen source at pH 6.5 and temperature 30 °C in 24 h kinetically resolved benzyl glycidyl ether (1 mg/ml) to provide (S)-benzyl glycidyl ether with 30% ee and (R)-3-benzyloxypropane-1,2-diol with 40% ee.


Assuntos
Bacillus/metabolismo , Biotecnologia/métodos , Compostos de Epóxi/metabolismo , Carbono/metabolismo , Meios de Cultura/química , Concentração de Íons de Hidrogênio , Nitrogênio/metabolismo , Peptonas/metabolismo , Sacarose/metabolismo , Temperatura
12.
Bioorg Med Chem ; 17(9): 3229-56, 2009 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-19299148

RESUMO

Malaria is a major public health problem mainly due to the development of resistance by the most lethal causative parasitic species, Plasmodium falciparum to the mainstay drugs like chloroquine. New drugs with unique structures and mechanism of action are urgently required to treat sensitive and drug-resistant strains of malaria. Historically, compounds containing novel structure from natural origin represent a major source for the discovery and development of new drugs for several diseases. This review presents recent advances in antimalarial drug discovery from natural sources, including plant extracts, and compounds isolated from plants, bacteria, fungi and marine organisms. These compounds offer new and novel scaffolds for development as antimalarials. The literature from 1998 to October 2008 is reviewed. The review present literature compilation from plant and marine extracts, alkaloids (naphthylisoquinolines, bisbenzylisoquinolines, protoberberines and aporphines, indoles, manzamines, and miscellaneous alkaloids) terpenes (sesquiterpenes, triterpenes, diterpenes, and miscellaneous terpenes) quassinoids, flavonoids, limonoids, chalcones, peptides, xanthones, quinones and coumarines, and miscellaneous antimalarials from nature. The review also provides an outlook to recent semisynthetic approaches to antimalarial drugs discovered from natural sources.


Assuntos
Antimaláricos/química , Antimaláricos/farmacologia , Produtos Biológicos/química , Produtos Biológicos/farmacologia , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Sequência de Aminoácidos , Animais , Antimaláricos/isolamento & purificação , Produtos Biológicos/isolamento & purificação , Descoberta de Drogas , Dados de Sequência Molecular , Extratos Vegetais/isolamento & purificação , Plasmodium/efeitos dos fármacos
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