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1.
3 Biotech ; 14(10): 233, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39297057

RESUMEN

Colorectal cancer (CRC) is a common and life-threatening neoplastic disease that continues to pose a formidable challenge to global health. The present work was performed to evaluate  the anticancer properties of betanin and betanin (BT) loaded starch nanoparticles (S-BT). The BT and S-BT were characterized by DLS, SEM, UV spectroscopy, XPS and FTIR. The cytotoxic effect was assessed by MTT and LDH assay. The apoptotic potential of BT and S-BT was assessed by DCFDA, Rh123, AO/EB and DAPI staining methods. Cell cycle arrest was depicted using flow cytometry. The antimetastatic potential of BT and S-BT was evaluated by wound healing assay. The S-BT showed a spherical morphology with a size of 175 nm. The betanin contained SNPs were found to have strong encapsulation efficiency and favorable release profiles. Both BT and S-BT exhibited cytotoxicity in SW480 cells but S-BT displayed increased cytotoxicity when compared to BT alone. Loss of mitochondrial membrane potential, nuclear fragmentation, chromatin condensation and generation of ROS, all indicative of apoptotic mode of cell death, were revealed by fluorescence imaging. The cells were arrested in the G2M phase. Moreover, both BT and S-BT were able to inhibit the migratory potential of SW480 cells. Overall, our results indicated that both BT and S-BT were able to induce anticancer effects; and, S-BT was found to have increased therapeutic efficacy when compared to BT alone.

2.
Drug Dev Ind Pharm ; : 1-20, 2024 Sep 09.
Artículo en Inglés | MEDLINE | ID: mdl-39226131

RESUMEN

Hepatocellular carcinoma (HCC) is a healthcare concern that causes most cancer-linked deaths around the world. This work was aimed at unraveling the anticancer potential of acamprosate and development of mesoporous silica nanoparticle (MSN) drug delivery system to increase the therapeutic efficacy of acamprosate. For this purpose, the MSNs were synthesized and encapsulated with acamprosate (MSN-Acamp). The MSN and MSN-Acamp were characterized by DLS, Zeta potential, UV spectroscopy, SEM, FTIR, XRD, DFT, and XPS. Biological effects were evaluated by MTT and lactate dehydrogenase assays. The apoptotic mode of cell death was evaluated by fluorescence imaging and DNA fragmentation assay. Cell cycle assessment and Annexin V-FITC/PI staining were performed to depict the phase of cell arrest and stage of apoptotic cells respectively. The acamprosate was found to exhibit cytotoxic effect and MSN-Acamp exhibited an increased cytotoxicity. Apoptotic mode of cell death was revealed by fluorescence imaging as nuclear fragmentation, production of reactive oxygen species (ROS), loss of membrane potential in mitochondria, and chromatin condensation/fragmentation were found. The docking results revealed that acamprosate had a considerable binding affinity with Bcl-2, Mcl-1, EGFR, and mTOR proteins. Overall, our results indicated that acamprosate and MSN-Acamp had a potent apoptotic effect and MSNs are propitious drug carriers to increase therapeutic effect in HCC.

3.
Heliyon ; 10(13): e33998, 2024 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-39055821

RESUMEN

Ajuga bracteosa (Ab) has tremendous medicinal value with long-established disease curing potential. The present study aimed to assess the hepatoprotective potential of Ab extracts in paracetamol-induced hepatotoxicity in mice. Group I (normal control) were treated with saline 1 ml/kg BW orally for 7 days while Group II (toxicant control) received saline 1 ml/kg BW for 6 days and Paracetamol (1000 mg/kg BW) on day7of the treatment. Group III received Standard drug silymarin (100 mg/kg BW) for 6 days and Paracetamol (1000 mg/kg BW) on day 7of treatment. Groups IV andV were administered with methanol extract (ME) 200 mg/kg BW and aqueous extract (AE) 1000 mg/kg BW for 6 days and Paracetamol (1000 mg/kg BW) on day 7th of the study. Both extracts showed hepatoprotective potential against the toxic effects of paracetamol, evidenced by serum analysis of biomarkers involved in liver injury and histopathological findings. Hepatotoxic mice pretreated with Ab plant extract or silymarin exhibited significant decrease in ALP, AST, and ALT enzyme level while GSH levels were markedly increased. According to histological observations, groups treated with PCM (toxicant control) showed significant necrosis and lymphocyte infiltration, while groups treated with silymarin and Ajuga bracteosa plant extract showed preservation of the normal liver structural features. The phytochemical analysis of ME and AE of Ab showed the presence of glycosides, phenolic compounds, tannins, fats, saponins, flavonoids, terpenes, oils, and fats. The antioxidant activity of these two extracts was determined by nitric oxide assay, DPPH assay, and ferric reducing power assay. The methanolic extract exhibited the highest antioxidant potential (78.09 ± 0.0806). The antioxidant potential of aqueous extract was 73.08 ± 0.248. The reducing power for methanolic extract and ascorbic acid (standard) 500 µg/ml was 0.933 and 0.987 respectively. The anti-inflammatory activity of both extracts was demonstrated by in vitro methods, namely albumin denaturation, proteinase inhibition, and membrane stabilization assays. The study suggests that Ab extracts have competence for attenuating inflammation, oxidants, and hepatotoxicity.

4.
J Cancer Res Clin Oncol ; 150(4): 212, 2024 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-38662247

RESUMEN

BACKGROUND AND AIM: Morinda citrifolia fruit juice (noni) is an herbal remedy documented to have antioxidant properties. It has been suggested that prevention of carcinogen-DNA adduct formation and the antioxidant activity of NJ may contribute to the cancer preventive effect. In the present study, the antitumor activity of noni was investigated in the presence of cyclophosphamide (CYL) in vitro and in vivo. METHODS: In vitro breast cancer cells (MDA-MB-468) were used to measure the percentage of inhibition and the IC50. The in vivo antitumor activity of noni was studied by monitoring the mean survival time (MST), percentage increase in life span (%ILS), viable and non-viable cell count, tumor volume, body weight, and hematological and serum biochemical parameters in mice. Treatment with noni and CYL exhibited dose- and time-dependent cytotoxicity toward breast cancer cells. RESULTS: Individual treatment of noni and CYL exhibited dose- and time-dependent cytotoxicity on breast cancer cell lines, while in combination therapy of noni and CYL, noni enhances cytotoxic effect of CYL at 48 h than that at 24 h. Similar result was found in in vivo studies, the results of which revealed that alone treatment of CYL and noni suppressed tumor growth. However, combination treatment with CYL and noni presented better tumor inhibition than that of alone treatment of CYL and noni. On the contrary, CYL alone drastically attenuated hematological parameters, i.e., RBC, WBC, and Hb compared to normal and control groups, and this change was reversed and normalized by noni when given as combination therapy with CYL. Moreover, the levels of serum biochemical markers, i.e., AST, ALP, and ALT, were significantly increased in the control and CYL-treated groups than those in the normal group. In the combination treatment of noni and CYL, the above biochemical marker levels significantly decreased compared to CYL alone-treated group. CONCLUSIONS: The present study suggested that CYL treatment can cause serious myelotoxicity and hepatic injury in cancer patients. In conclusion, the combined use of noni with CYL potentially enhances the antitumor activity of CYL and suppresses myelotoxicity and hepatotoxicity induced by CYL in tumor-bearing mice.


Asunto(s)
Neoplasias de la Mama , Ciclofosfamida , Morinda , Animales , Ciclofosfamida/farmacología , Ciclofosfamida/efectos adversos , Ratones , Humanos , Femenino , Morinda/química , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Línea Celular Tumoral , Jugos de Frutas y Vegetales , Ensayos Antitumor por Modelo de Xenoinjerto , Sinergismo Farmacológico , Extractos Vegetales/farmacología , Protocolos de Quimioterapia Combinada Antineoplásica/farmacología , Antineoplásicos Alquilantes/farmacología , Antineoplásicos Alquilantes/efectos adversos , Ratones Endogámicos BALB C , Enfermedad Hepática Inducida por Sustancias y Drogas/prevención & control , Enfermedad Hepática Inducida por Sustancias y Drogas/etiología
5.
Artículo en Inglés | MEDLINE | ID: mdl-38144883

RESUMEN

Cancer continues to increase global morbidity and mortality rates. Despite substantial progress in the development of various chemically synthesized anti-cancer drugs, the poor prognosis of the disease still remains a big challenge. The most common drawback of conventional cancer therapies is the emergence of drug resistance eventually leading to the discontinuation of chemotherapy. Moreover, advanced target-specific therapies including immunotherapy and stem cell therapy are expensive enough and are unaffordable for most patients in poorer nations. Therefore, alternative and cheaper therapeutic strategies are needed to complement the current cancer treatment approaches. Phytochemicals are bioactive compounds produced naturally by plants and have great potential in human health and disease. These compounds possess antiproliferative, anti-oxidant, and immunomodulatory properties. Among the phytochemicals, flavonoids are very effective in treating a wide range of diseases from cardiovascular diseases and immunological disorders to cancer. They scavenge reactive oxygen species (ROS), inhibit cancer metastasis, modulate the immune system and induce apoptotic or autophagic cell death in cancers. This review will discuss the potential of various phytochemicals particularly flavonoids in attempts to target various cancers.

6.
J Cancer Res Ther ; 19(5): 1288-1296, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37787297

RESUMEN

Background: Cancer is a deadly disease, which is due to the uncontrolled division of cells with abnormal or unusual characteristics. It is a consequence of lethal mutations occurring due to various chemical and physical carcinogens, affecting many cellular signalling pathways and leading to uncontrolled proliferation. In this study, we analyzed the effect of 4-(1H-imidazol-1-yl)-N-(2-(3-(4-methylbenzyl) ureido) ethyl)benzamide (IMUEB), an imidazole derivative, on A549 cells (lung cancer cells). Methods: The MTT and LDH assays were performed to measure the cytotoxicity of IMUEB against A549 cells. Apoptotic mode of cell death of A549 cells was determined by fluorescence imaging by using different stains. Flow cytometry was performed to detect the cell cycle arrest. Western blotting was performed to determine the levels of apoptotic protein. Wound healing assay was performed to find the effect of IMUEB on cell migration. In silico molecular docking of IMUEB was performed to predict its affinity towards apoptotic proteins and metastasis related enzymes. Result and Discussion: The MTT assay showed an increase in cytotoxicity with increasing concentrations of IMUEB. In addition, it was found that IMUEB arrests cell cycle at G1 phase as detected by flow cytometry analysis and induces apoptosis. The treatment with IMUEB drastically decreased the migratory potential of A549 cells as evaluated by migration and invasion assay. By Western blotting analysis, it was found that the concentration of caspase-3 was increased after the treatment with IMUEB. Conclusion: Altogether, our results indicate that IMUEB shows antitumor activity by inhibiting proliferation and inducing apoptosis in A549 cells.


Asunto(s)
Neoplasias Pulmonares , Humanos , Neoplasias Pulmonares/genética , Simulación del Acoplamiento Molecular , Línea Celular Tumoral , Proliferación Celular , Apoptosis , Movimiento Celular
7.
Med Sci Educ ; 33(5): 1215-1220, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37886288

RESUMEN

Background: In the current era of medical teaching, multiple active teaching-learning strategies are being explored due to drawbacks of conventional didactic learning methodology which are applicable to a typical classroom setting. Our attempt was to introduce short interactive buzz sessions in the midst of a lecture and assess the perception of students and faculty towards the use of these buzz sessions as an active learning method in physiology. Aim and Objectives: To introduce buzz sessions as a teaching-learning tool in undergraduate medical teaching and to assess the student and faculty perception of this teaching method. Methodology: This prospective, non-randomized, interventional study was carried out in the Department of Physiology, GMC Srinagar. The participants were 180 students of MBBS 1st Phase and 08 faculty members of the Physiology Department. Both the students and faculty were sensitized about the buzz sessions. Ten lectures of 1 h each were chosen from the Endocrine System, and taught by incorporating the buzz session in the lecture. The study was approved by the Institutional Ethical Committee. Results: Both the students and the faculty favoured incorporating buzz sessions during the lectures as this teaching method makes the class interesting and interactive and helps to enhance communication, reasoning skills, and collaborative learning among the students. Conclusions: The study concludes that learning physiology using buzz sessions is liked and preferred by both students and faculty, and hence the need for buzz sessions in current medical teaching.

8.
Pharmacology ; 108(6): 504-520, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37748454

RESUMEN

BACKGROUND: The development of breast cancer (BC) and how it responds to treatment have both been linked to the involvement of inflammation. Chronic inflammation is critical in carcinogenesis, leading to elevated DNA damage, impaired DNA repair machinery, cell growth, apoptosis, angiogenesis, and invasion. Studies have found several targets that selectively modulate inflammation in cancer, limit BC's growth, and boost treatment effectiveness. Drug resistance and the absence of efficient therapeutics for metastatic and triple-negative BC contribute to the poor outlook of BC patients. SUMMARY: To treat BC, small-molecule inhibitors, phytomedicines, and nanoparticles are conjugated to attenuate BC signaling pathways. Due to their numerous target mechanisms and strong safety records, phytomedicines and nanomedicines have received much attention in studies examining their prospects as anti-BC agents by such unfulfilled demands. KEY MESSAGES: The processes involved in the affiliation across the progression of tumors and the spread of inflammation are highlighted in this review. Furthermore, we included many drugs now undergoing clinical trials that target cancer-mediated inflammatory pathways, cutting-edge nanotechnology-derived delivery systems, and a variety of phytomedicines that presently address BC.


Asunto(s)
Antineoplásicos , Neoplasias de la Mama , Neoplasias de la Mama Triple Negativas , Humanos , Femenino , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/metabolismo , Nanomedicina , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Transducción de Señal , Neoplasias de la Mama Triple Negativas/tratamiento farmacológico , Inflamación/tratamiento farmacológico
9.
J Cancer Res Ther ; 19(3): 601-609, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37470582

RESUMEN

Background: Head-and-neck squamous cell carcinoma is associated with the epigenetic silencing of various genes such as DAPK, ataxia telangiectasia mutated (ATM), BRCA1, p16INK4a, pVHL, p16, and RASSF1A. The most common epigenetic change observed in these genes is DNA methylation that directs the studies toward finding inhibitors for DNA methyltransferases (DNMTs), the protagonist in the action. The present study focuses on analyzing the possibility whether indole curcumin can reverse epigenetic changes of the various tumor suppressor genes, characteristically silenced by methylation, by inhibiting the major methylation enzyme DNA methyltransferase 1 or DNMT1. Materials and Methods: The cytotoxic effects of indole curcumin were studied through the MTT and lactate dehydrogenase assays. To determine the apoptosis-mediated death of HEp-2 cells, fluorescence imaging using different stains was done. Gene or mRNA expression analysis was done for p53, ATM, and DAPK genes. Results: The results obtained from this study clearly indicate that the indole analog of curcumin plays a remarkable role in activating genes involved in cell cycle regulation and apoptosis induction through epigenetic regulation. The influence that the drug has on the methylation status of gene promoter sequence of the ATM gene is also very significant. Conclusion: Indole curcumin, being an analog of curcumin, promises to be a very useful drug molecule having various potential targets. The target selected for this study was DNMT1 enzyme and the drug seems to actually show the effects; it was predicted to be having on the target molecule.


Asunto(s)
Curcumina , Humanos , Curcumina/farmacología , Epigénesis Genética , Línea Celular Tumoral , Metilación de ADN , Apoptosis/genética , Ciclo Celular/genética , ADN
10.
Pharmaceuticals (Basel) ; 16(7)2023 Jul 14.
Artículo en Inglés | MEDLINE | ID: mdl-37513916

RESUMEN

Mechanistic target of rapamycin (mTOR) is a protein kinase that regulates cellular growth, development, survival, and metabolism through integration of diverse extracellular and intracellular stimuli. Additionally, mTOR is involved in interplay of signalling pathways that regulate apoptosis and autophagy. In cells, mTOR is assembled into two complexes, mTORC1 and mTORC2. While mTORC1 is regulated by energy consumption, protein intake, mechanical stimuli, and growth factors, mTORC2 is regulated by insulin-like growth factor-1 receptor (IGF-1R), and epidermal growth factor receptor (EGFR). mTOR signalling pathways are considered the hallmark in cancer due to their dysregulation in approximately 70% of cancers. Through downstream regulators, ribosomal protein S6 kinase ß-1 (S6K1) and eukaryotic translation initiation factor 4E binding protein 1 (4E-BP1), mTORC1 influences various anabolic and catabolic processes in the cell. In recent years, several mTOR inhibitors have been developed with the aim of treating different cancers. In this review, we will explore the current developments in the mTOR signalling pathway and its importance for being targeted by various inhibitors in anti-cancer therapeutics.

11.
Org Lett ; 25(14): 2382-2387, 2023 Apr 14.
Artículo en Inglés | MEDLINE | ID: mdl-36999789

RESUMEN

An unprecedented, one-step strategy for the synthesis of 5-(methylthio)pyridazin-3(2H)-one derivatives has been developed through iodine triggered deaminative coupling of glycine esters with methyl ketones and hydrazine hydrate in DMSO. These transformations in the absence of hydrazine helped to generate different 3-methylthio-4-oxo-enoates in good yields. Notably, DMSO played multiple roles such as oxidant, methylthiolating reagent, and solvent.

12.
Appl Neuropsychol Adult ; : 1-12, 2023 Jan 31.
Artículo en Inglés | MEDLINE | ID: mdl-36719791

RESUMEN

AIM: Particle swarm optimization (PSO) is an algorithm that involves the optimization of Non-linear and Multidimensional problems to reach the best solutions with minimal parameterization. This metaheuristic model has frequently been used in the Pathological domain. This optimization model has been used in diverse forms while predicting Alzheimer's disease. It is a robust algorithm that works on linear and multi-modal data while predicting Alzheimer's disease. PSO techniques have been in action for quite some time for detecting various diseases and this paper systematically reviews the papers on various kinds of PSO techniques. METHODS: To perform the systematic review, PRISMA guidelines were followed and a Boolean search ("particle swarm optimization" OR "PSO") AND Neuroimaging AND (Alzheimer's disease prediction OR classification OR diagnosis) were performed. The query was run in 4-reputed databases: Google Scholar, Scopus, Science Direct, and Wiley publications. RESULTS: For the final analysis, 10 papers were incorporated for qualitative and quantitative synthesis. PSO has shown a dominant character while handling the uni-modal as well as the multi-modal data while predicting the conversion from MCI to Alzheimer's. It can be seen from the table that almost all the 10 reviewed papers had MRI-driven data. The accuracy rate was accentuated while adding other modalities or Neurocognitive measures. CONCLUSIONS: Through this algorithm, we are providing an opportunity to other researchers to compare this algorithm with other state-of-the-art algorithms, while seeing the classification accuracy, with the aim of early prediction and progression of MCI into Alzheimer's disease.

13.
Medicina (Kaunas) ; 58(11)2022 Oct 22.
Artículo en Inglés | MEDLINE | ID: mdl-36363460

RESUMEN

Background and objectives: Abnormal uterine bleeding is a significant clinical and gynaecological concern that necessitates its safe and effective treatment. The present study aims to compare the cost-effectiveness, safety, efficacy, and health-related quality of life of ormeloxifene with medroxyprogesterone acetate in women with non-structural abnormal uterine bleeding. Materials and Methods: A prospective, randomized, single-blinded clinical trial of 367 patients was carried out at a tertiary care hospital for a period of one year from 5 January 2019 to 4 January 2020. Patients were randomized into two groups for administering ormeloxifene and medroxyprogesterone acetate for a 3-month treatment duration and were evaluated by laboratorial investigations like anaemic status, bleeding duration, endometrial thickness, pictorial blood loss assessment chart (PBLAC) score, and patient's medical and medication history. Health-related quality of life was assessed using short form survey-36 (SF-36) questionnaire scale. Cost-effectiveness was determined on the basis of the three-month treatment regimen. Results: The mean duration of bleeding reduced from 16.88 ± 6.46 to 7.76 ± 1.55 in the ormeloxifene group and from 15.91 ± 5.04 to 8.7 ± 1.91 (p < 0.001) in the medroxyprogesterone acetate. Similarly, mean haemoglobin increased from 8.56 ± 0.77 to 10.1 ± 0.087 g/dL and from 8.60 ±0.97 to 9.551 ± 0.90 g/dL (p < 0.001), and endometrial thickness showed a reduction from 8.52 ± 1.61 mm to 6.92 ± 1.68 mm and from 8.40 ± 2.09 mm to 7.85 ± 2.0 mm (p < 0.001) in the ormeloxifene and medroxyprogesterone acetate groups, respectively. PBLAC score reduced from 289.92 ± 42.39 to 128.11 ± 33.10 and from 287.38 ± 40.94 to 123.5 ± 29.57 (p < 0.001) in these groups, respectively. Health-related quality of life improved in the ormeloxifene group more than the medroxyprogesterone group, which was evidenced by SF-36 scale parameters (physical function, energy/fatigue and pain) that changed from 24.39, 12.99, 6.25 to 28.95, 18, 9 and from 25.41, 13.6, 7.1 to 27.02, 16, 8.3 in the ormeloxifene and medroxyprogesterone acetate groups, respectively. Conclusions: The study concludes that both medroxyprogesterone acetate and ormeloxifene are safe and efficacious in controlling abnormal uterine bleeding, but ormeloxifene was the better of the two in terms of cost effectiveness, reduction in pictorial blood loss assessment score, endometrial thickness, bleeding duration (days), increase in haemoglobin concentration (g/dL) and improvement in the quality of life.


Asunto(s)
Acetato de Medroxiprogesterona , Moduladores Selectivos de los Receptores de Estrógeno , Humanos , Femenino , Acetato de Medroxiprogesterona/farmacología , Acetato de Medroxiprogesterona/uso terapéutico , Moduladores Selectivos de los Receptores de Estrógeno/uso terapéutico , Calidad de Vida , Estudios Prospectivos , Hemorragia Uterina/tratamiento farmacológico
14.
Molecules ; 27(19)2022 Oct 05.
Artículo en Inglés | MEDLINE | ID: mdl-36235145

RESUMEN

Cancer is one of the leading causes of morbidity and mortality around the globe and is likely to become the major cause of global death in the coming years. As per World Health Organization (WHO) report, every year there are over 10 and 9 million new cases and deaths from this disease. Chemotherapy, radiotherapy, and surgery are the three basic approaches to treating cancer. These approaches are aiming at eradicating all cancer cells with minimum off-target effects on other cell types. Most drugs have serious adverse effects due to the lack of target selectivity. On the other hand, resistance to already available drugs has emerged as a major obstacle in cancer chemotherapy, allowing cancer to proliferate irrespective of the chemotherapeutic agent. Consequently, it leads to multidrug resistance (MDR), a growing concern in the scientific community. To overcome this problem, in recent years, nanotechnology-based drug therapies have been explored and have shown great promise in overcoming resistance, with most nano-based drugs being explored at the clinical level. Through this review, we try to explain various mechanisms involved in multidrug resistance in cancer and the role nanotechnology has played in overcoming or reversing this resistance.


Asunto(s)
Antineoplásicos , Neoplasias , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Resistencia a Múltiples Medicamentos , Resistencia a Antineoplásicos , Humanos , Nanotecnología , Neoplasias/tratamiento farmacológico , Neoplasias/metabolismo
15.
Urol Case Rep ; 42: 102038, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35530560

RESUMEN

Spontaneous renal artery thrombosis is a rare medical emergency. The signs and symptoms of the disease are variable and non specific making it difficult to diagnose on time and easily missed for other more common pathologies. Proper evaluation and timely intervention can prevent the loss of renal function. We present a case of 45 year old male with no comorbidity who presented with complaints of right flank pain, fever and vomiting for one day. With physical examination within normal limits, evaluation revealed right renal artery thrombosis.

16.
Phys Rev Lett ; 128(8): 080507, 2022 Feb 25.
Artículo en Inglés | MEDLINE | ID: mdl-35275648

RESUMEN

The negative solution to the famous problem of 36 officers of Euler implies that there are no two orthogonal Latin squares of order six. We show that the problem has a solution, provided the officers are entangled, and construct orthogonal quantum Latin squares of this size. As a consequence, we find an example of the long-elusive Absolutely Maximally Entangled state AME(4,6) of four subsystems with six levels each, equivalently a 2-unitary matrix of size 36, which maximizes the entangling power among all bipartite unitary gates of this dimension, or a perfect tensor with four indices, each running from one to six. This special state deserves the appellation golden AME state, as the golden ratio appears prominently in its elements. This result allows us to construct a pure nonadditive quhex quantum error detection code ((3,6,2))_{6}, which saturates the Singleton bound and allows one to encode a six-level state into a triplet of such states.

17.
Taiwan J Obstet Gynecol ; 61(1): 40-50, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35181044

RESUMEN

Polycystic ovary syndrome (PCOS), the most common endocrinopathy in women is characterized by polycystic ovaries, chronic anovulation and hyperandrogenism. The treatment in PCOS is mainly symptomatic and involves lifestyle interventions and medications such as Metformin, Oral contraceptives and Antiandrogens. However, the management of PCOS is challenging and current interventions are not able to deal with outcomes of this syndrome. This review encompasses latest pharmacotherapeutic and non-pharmacotherapeutic interventions currently in use to tackle various symptomatic contentions in PCOS. Our focus has been mainly on novel therapeutic modalities for treatment/management of PCOS, like use of newer insulin sensitizers viz., Inositols, Glucagon-like peptide-1(GLP-1) agonists, Dipeptidyl pepdidase-4 (DPP-4) inhibitors, and sodium-glucose transport protein 2 (SGLT2) inhibitors. Also, evidence suggesting the use of vitamin D, statins, and Letrozole as emerging therapies in PCOS have been summarized in this review. Additionally, novel cosmetic techniques like electrolysis, laser and use of topically applied eflornithine to tackle the most distressing feature of facial hirsutism associated with PCOS, non-pharmacological therapy like acupuncture and the role of herbal medicine in PCOS management have also been discussed.


Asunto(s)
Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hipoglucemiantes/uso terapéutico , Terapia por Láser , Letrozol/uso terapéutico , Síndrome del Ovario Poliquístico/terapia , Vitamina D/uso terapéutico , Acupuntura , Anovulación/complicaciones , Anovulación/tratamiento farmacológico , Eflornitina/uso terapéutico , Femenino , Medicina de Hierbas , Hirsutismo/complicaciones , Hirsutismo/tratamiento farmacológico , Humanos , Hiperandrogenismo/tratamiento farmacológico , Metformina/uso terapéutico , Síndrome del Ovario Poliquístico/complicaciones
18.
Ann Med Surg (Lond) ; 73: 103162, 2022 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-34917355

RESUMEN

BACKGROUND: Assessing the prevalence and progression of hypertension among diabetics is crucial for designing appropriate strategies for successfully managing hypertension and its life-threatening complications. This study aimed to assess the prevalence of hypertension, its progression, and its determinants among type 2 diabetes mellitus (T2DM) patients in Jordan. MATERIALS AND METHODS: A cross-sectional study was conducted among 1382 Jordanian patients with T2DM in the period from January 2019 to January 2020. Blood pressure (BP) was followed and measured every 2-3 months using standardized automated sphygmomanometer during patients' routine visits for a total of 12 months. Data were obtained from medical records that included sociodemographic variables, anthropometric measurements, HbA1c, lipid profile, presence of T2DM complications and treatment. RESULTS: The prevalence of hypertension among T2DM patients at the baseline was 74.6% (95% CI: 72.2%, 76.9%). The one-year incidence of hypertension among T2DM patients who were free of hypertension at the baseline was 26.2% (95% CI: 21.7%, 31.1%). In the multiple logistics regression analysis, patients older than 60 years (OR = 1.3 (95% CI: 1.01, 1.7); p-value 0.045) and those with positive family history of hypertension (OR = 4.2 (95% CI: 1.2, 8.2); p-value 0.026) were more likely to have uncontrolled hypertension. Patients who were using insulin only were less likely (OR = 0.5 (95% CI: 0.2, 0.9); p-value 0.026) to have uncontrolled hypertension compared to those who were on oral hypoglycemic agents only. CONCLUSION: The prevalence of hypertension among Jordanian patients with T2DM is alarmingly high. Healthcare providers should be committed to policies or preventive strategies targeting the modifiable risk factors associated with hypertension.

19.
Toxicol Mech Methods ; 31(6): 401-412, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-33736563

RESUMEN

Cancer is the second most dreaded disease worldwide. It is either acquired or inherited leading to the accompanying undesirable changes in the affected cells. Most existing chemotherapeutic drugs show enormous side effects. To minimize such effects, constant progress has been observed in the field of cancer by screening the anti-cancer effects of different chemical analogues. In the current study, we investigated the mechanism of action of a novel anticancer chromeno-pyrimidine analogue. We employed MTT, LDH assay to study cytotoxicity. DNA fragmentation, fluorescence imaging, and flow cytometric techniques have been carried out to study apoptosis, ROS generation, and cell cycle respectively. Wound healing assay and western blotting were used to evaluate the markers of epithelial-mesenchymal transition associated with metastasis. Molecular docking was used to predict possible protein targets that bind to this compound. The novel analogue induced apoptosis in lung adenocarcinoma cells and exhibited anti-metastatic activity. Increased expression of E-cadherin and inhibition of epithelial-mesenchymal transition was also observed. Docking studies with metastasis-related proteins such as Frizzled-7 (CRD), and Snail1 predict a high binding affinity of CP4b to both proteins. The novel analogue is therefore an anti-metastatic compound with EMT-inhibiting property and is hypothesized to act via binding to multiple targets in cancer cells.


Asunto(s)
Adenocarcinoma del Pulmón , Neoplasias Pulmonares , Adenocarcinoma del Pulmón/tratamiento farmacológico , Antineoplásicos , Línea Celular Tumoral , Movimiento Celular , Proliferación Celular , Transición Epitelial-Mesenquimal , Humanos , Neoplasias Pulmonares/tratamiento farmacológico , Simulación del Acoplamiento Molecular , Preparaciones Farmacéuticas , Pirimidinas
20.
Phys Rev Lett ; 125(7): 070501, 2020 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-32857550

RESUMEN

Maximally entangled bipartite unitary operators or gates find various applications from quantum information to many-body physics wherein they are building blocks of minimal models of quantum chaos. In the latter case, they are referred to as "dual unitaries." Dual unitary operators that can create the maximum average entanglement when acting on product states have to satisfy additional constraints. These have been called "2-unitaries" and are examples of perfect tensors that can be used to construct absolutely maximally entangled states of four parties. Hitherto, no systematic method exists in any local dimension, which results in the formation of such special classes of unitary operators. We outline an iterative protocol, a nonlinear map on the space of unitary operators, that creates ensembles whose members are arbitrarily close to being dual unitaries. For qutrits and ququads we find that a slightly modified protocol yields a plethora of 2-unitaries.

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