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1.
Chemosphere ; 313: 137418, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36460159

RESUMO

Mixed Matrix Membranes have gained significant attention over the past few years due to their diverse applications, unique hybrid inorganic filler and polymeric properties. In this article, the impregnation of nano-hybrid filler (polyoxometalates (∼POMs) encapsulated into the metal-organic framework (MOF) âˆ¼ PMOF) on the polysulfone membrane (∼PSF) was done, resulting in a mix matrix membrane (∼PMOF@PSF). The developed structure was characterized by Fourier transform infrared (FT-IR), powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), and transmission electron microscopes (TEM). The results confirmed that the nano-hybrid filler was successfully fabricated on the surface of PSF. Different loading ratios of nano-hybrid filler (5%, 10%, 20%, 30%, and 40%) were used for impregnation. The study's objective was to enhance catalytic performance using optimization curves designed using a three-level Box-Behnken Design (BBD) simulation. The photodegradation of Methylene Blue (∼MB) was studied against PMOF@PSF30% and was found to perform optimally when the concentration of catalyst, time of degradation, and temperature were 0.05-0.15 gm, 40-120 min, and 30-70 °C respectively. These experiments were replicated 15 times, and obtained results were further processed using a two-quadratic polynomial model to develop response surface methodology (RSM), which allowed for a functional relationship between the decolorization and experimental parameters. The optimal performance of the reaction mixture was calculated to be 0.15 gm for concentration, 70 °C for temperature, with an 80 min reaction time. Under these optimal conditions, the predicted decolorization of MB was 98.09%. Regression analysis with R2 > 0.99 verified the fit of experimental results with predicted values. The PMOF@PSF PSF30% demonstrated excellent reusability as its dye degradation properties were significantly unaffected after ten cycles.


Assuntos
Azul de Metileno , Modelos Estatísticos , Espectroscopia de Infravermelho com Transformada de Fourier , Fotólise , Azul de Metileno/química , Excipientes , Sulfonas
2.
Pak J Pharm Sci ; 35(2(Special)): 619-625, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35668562

RESUMO

An imbalance between oxidative stress and antioxidative defence mediates a variety of diseases pathogenesis. The present study aims to assess the possible outcome of supplementation of oral vitamin-C (VC), an antioxidant, in Viral Hepatitis C (HCV) treatment as an adjuvant therapy. 200 HCV-patients were selected, 100 were given Vitamin-C (1000 mg/day) along with anti HCV treatment (sofosbuvir plus daclatasvir) while the other 100 took only anti-HCV treatment for 4weeks. The serum ascorbic acid (Vitamin-C) levels and functions of the liver were tested before and after the VC supplementation. HCV patients with relatively low serum ascorbic acid showed significant improvement after the intake of vitamin C. After 4 weeks of treatment, AST, ALP, albumin, and total, direct and indirect bilirubin were improved significantly in the VC group; whereas only ALT and indirect bilirubin were improved in both groups when associated with the control subjects. Comparing the two treatment groups at 4weeks; more effective and significant improvement was observed in ALT (p<0.01), AST (p<0.001), direct (p<0.01) and indirect bilirubin (p<0.001), total proteins (p<0.001) and albumin (p<0.05) in patients with VC supplementation on anti-viral treatment compared to only anti-viral treatment group. Thus, VC supplementation improves the antiviral therapy outcome by bestowing a beneficial effect in minimizing liver damage in HCV cases.


Assuntos
Hepatite C Crônica , Hepatite C , Albuminas , Antioxidantes/uso terapêutico , Antivirais/uso terapêutico , Ácido Ascórbico/uso terapêutico , Bilirrubina , Suplementos Nutricionais , Quimioterapia Combinada , Hepacivirus , Hepatite C/tratamento farmacológico , Hepatite C Crônica/tratamento farmacológico , Humanos , Resultado do Tratamento , Vitaminas/uso terapêutico
3.
Pak J Pharm Sci ; 35(1(Supplementary)): 247-252, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35228184

RESUMO

Chicory can be used as herbal medicine against different ailments and also added to daily diet as vegetable or animal feed. An efficacy trial was conducted to assess the potential of this plant against liver disorders using rodent modeling. The trials comprised two modules i.e., normal diet and chicory-based supplemented diet. Moreover, experimental animals (rats) were divided into six groups with both modules including C0 (control diet), C1 (Chicory root containing diet), C2 (chicory seed containing diet), C3 (chicory stem containing diet) and C4 (chicory leaf containing diet). During 56 days of the trial period, serum lipid profile, liver and renal functioning tests were performed. The highest feed and water intake, as well as weight gain, was noted in control (C0) trailed by C1, C2, C3, C4 and C5group in an experimental trial, respectively. The resultant diet C2 lowered the liver alkaline phosphatase level (ALP) from C0 (240.72±3.35) to 203.52±2.08 (C2), respectively. Similarly, C2 significantly lowered the ALT from 60.28±2.23 (C0) &57.58±0.91 (C2) in rats. Moreover, C2 treatment showed a maximum reduction of AST from 145.13±2.10 (C0) to 134.52±1.24 (C2), respectively. Convincingly, chicory-based diet may be employed as an alternative to medication in the prevention and treatment of hypercholesterolemia and hepatic malfunctioning.


Assuntos
Hipercolesterolemia/tratamento farmacológico , Fígado/efeitos dos fármacos , Fígado/metabolismo , Animais , Rim/efeitos dos fármacos , Rim/metabolismo , Distribuição Aleatória , Ratos
4.
Pak J Pharm Sci ; 34(5(Supplementary)): 1885-1890, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34836855

RESUMO

The facile and efficient protocol for the synthesis of N-phenyl piperazine based di-thio-carbamates has been reported under neat conditions. A library of novel piperazine based di-thio-carbamates (3a-h) in excellent yields has been prepared. Solvent free, catalyst free and easy work up conditions make this protocol an attractive synthetic protocol to achieve novel biologically active di-thio-carbamates. The synthesized molecules have been characterized by FT-IR, 1HNMR and 13CNMR spectroscopic techniques. The pharmacological aspects of these derivatives have been evaluated via hemolysis and thrombolysis. All the target molecules (3a-h) exhibit mild to medium potential as hemolytic and thrombolytic agents. Among the synthesized derivatives, compound 3c showed least cytotoxicity and better thrombolytic potential.


Assuntos
Fibrinolíticos/síntese química , Fibrinolíticos/farmacologia , Química Verde/métodos , Hemolíticos/síntese química , Hemolíticos/farmacologia , Piperazinas/síntese química , Piperazinas/farmacologia , Tiocarbamatos/síntese química , Tiocarbamatos/farmacologia , Fibrinolíticos/toxicidade , Hemólise/efeitos dos fármacos , Hemolíticos/toxicidade , Humanos , Estrutura Molecular , Piperazinas/toxicidade , Relação Estrutura-Atividade , Tiocarbamatos/toxicidade
5.
Pak J Pharm Sci ; 34(5(Supplementary)): 1903-1907, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34836858

RESUMO

The aim of present research work was to evaluate the Salvia macrosiphon Boiss. of Lamiaceae (mint family), using biochemical and biological assays. Plant's phytochemicals extraction was performed in methanol, butanol and water by mechanical shaking process. TPC and TFC were determined by Folin-Ciocalteu and aluminum chloride colorimetric procedures, respectively. The highest TPC (99.61±3.45 mg GAE/g) and TFC (234.72±7.12mg CE/g) were obtained in butanol and methanol, respectively. Regarding the antioxidant potential methanol extract showed the highest DPPH° scavenging potential (78.0±2.0%) and reducing activity (0.923±0.020 absorbance). The antibacterial activity of butanol extract against P. aeruginosa were found highest (ZOI = 23±2.00 mm). Antifungal study of methanol extract showed the ZOI (11 ±0.67mm) against F. brachygibbosum. The results revealed that the methanol stem extract of S. macrosiphon bear significant medicinal value and could be used for formulating phytomedicines and food preservers.


Assuntos
Antibacterianos/farmacologia , Antifúngicos/farmacologia , Antioxidantes/farmacologia , Extratos Vegetais/farmacologia , Salvia/química , Bactérias/efeitos dos fármacos , Compostos de Bifenilo , Flavonoides/análise , Sequestradores de Radicais Livres/farmacologia , Fungos/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Fenóis/análise , Picratos , Folhas de Planta
6.
Pak J Pharm Sci ; 34(6(Supplementary)): 2309-2315, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35039268

RESUMO

The liver is a fundamental metabolic organ that performs many essential functions including the detoxification of toxic substances present in the body. Exposure to various toxicants leads the liver towards hepatic injury. This study was planned to estimate the hepatoprotective and regenerative efficacy of Quinoa seeds (Chenopodium quinoa) extract against carbon tetrachloride (CCl4) induced liver damage. At a dose of 1ml/kg (153.8mg/kg) body weight carbon tetrachloride (CCl4) was used intraperitoneally to induce hepatic injury in Wistar rats. Silymarin (30mg/kg body weight, p.o.), an antioxidant was used as a reference standard drug. Subsequently, ethanolic extract of Quinoa seeds (QEE) was administered at 400 and 600mg/kg body weight through oral gavage. Various biochemical and regenerative biomarkers were assessed to evaluate the potential efficacy of QEE in liver tissue regeneration. Results revealed that QEE administration significantly reduced the CCl4-induced raised quantities of alanine transaminase (ALT), aspartate transaminase (AST), and total oxidative stress (TOS) while, significantly improved the level of triiodothyronine (T3), thyroxine (T4), albumin and total protein concentration in QEE treated groups. The expression level of IGF-1, FOXA-2, Stmn-2, SPP-1 was found significantly down-expressed. It is concluded that QEE treatment has the regenerative and hepatoprotective effect.


Assuntos
Antioxidantes/farmacologia , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Chenopodium quinoa , Regeneração Hepática/efeitos dos fármacos , Fígado/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Extratos Vegetais/farmacologia , Sementes , Animais , Antioxidantes/isolamento & purificação , Biomarcadores/sangue , Tetracloreto de Carbono , Proliferação de Células , Doença Hepática Induzida por Substâncias e Drogas/etiologia , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Doença Hepática Induzida por Substâncias e Drogas/patologia , Chenopodium quinoa/química , Modelos Animais de Doenças , Fígado/metabolismo , Fígado/patologia , Extratos Vegetais/isolamento & purificação , Ratos Wistar , Sementes/química , Silimarina/farmacologia
7.
J Mol Struct ; 1214: 128252, 2020 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-32292211

RESUMO

A group of new nitro substituted benzoxazinones (3a-k) were synthesized from easily available 4-nitroanthranilic acid. All the synthesized compounds were characterized by FT-IR, 1H NMR, 13C NMR, mass spectrometry and elemental analysis. Anti-proliferative and pro-apoptotic potential of all the synthesized compounds (3a-k) was evaluated by MTT and Hoechst 33258 staining assay respectively whereas their antioxidant properties were determined via DPPH free radical scavenging assay. The most active compounds (3a, 3c and 3k) showed significant cytotoxic potential against HeLa cells with an inhibition of cell viability that ranged between 28.54 and 44.67% (P < 0.001). Albeit statistically different, the anti-proliferative effect of 3c was in close match with that of the reference drug doxorubicin. Likewise, the test compounds showed profound pro-apoptotic potential with an apoptotic index that ranged between 52.86 and 75.61%. Besides, the docking studies revealed a higher efficiency for compounds (3a and 3h) owing to their better affinity and inhibition constant (Ki = 4.397 and 3.713 nmol) respectively. The antioxidant potential of synthesized benzoxazinones (3a-k) was in close agreement with the experimental anticancer results with a percent inhibition from 34.45 to 85.93% as compared to standard (90.56%).

8.
Pak J Pharm Sci ; 33(1(Supplementary)): 241-244, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32122854

RESUMO

Cerebrovascular diseases are known as serious public health problem worldwide, which can be addressed more precisely through molecular imaging of non-functional brain cells. CDP-choline is an active cerebrovascular chemotherapeutic agent that can be used for diagnosis of cerebrovascular diseases post radiolabeling with γ-emitter radioisotopes. In this study we developed 99mTc labeled CDP-choline for imaging of cerebrovascular diseases particularly alzheimer, stroke, and parkinson's diseases. The radiosynthesis reaction resulted 97.47±2.34% radiochemical with promising stability, that is, >95% up to 6 h in blood serum. The biodistribution study in healthy mice revealed non-accumulated uptake of radiochemical in key body organs; in brain it was 8.59±1.11% ID/g at 1h post-injection which washed-out leaving behind 0.87±0.61% ID/g at 24 h post-injection. The over-all data revealed the 99mTc-CDP-choline could be a good candidate for further imaging investigations in diseased animal model.


Assuntos
Transtornos Cerebrovasculares/metabolismo , Colina/metabolismo , Cistina Difosfato/metabolismo , Compostos de Organotecnécio/metabolismo , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Transtornos Cerebrovasculares/diagnóstico por imagem , Humanos , Distribuição Tecidual/fisiologia , Tomografia Computadorizada de Emissão de Fóton Único/tendências
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