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1.
Pak J Med Sci ; 39(5): 1416-1421, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37680793

RESUMO

Objectives: To assess the prevalence, pattern, and associated factors of dyslipidemia in patients with coronary artery disease (CAD) in the Northwest region of Pakistan. Method: A cross-sectional secondary data analysis was performed on CAD patients visiting cardiology clinics in selected hospitals from July to December 2019. A total of 362 patients were included via consecutive sampling. Dyslipidemia was operationalized according to the "National Cholesterol Education Program (NCEP ATP III) guidelines". Results: Mixed dyslipidemia was recorded in 92.26% of the patients, while isolated dyslipidemia was observed in 5.24%. A high prevalence of combined dyslipidemia with increased LDL-C, TG, and low HDL-C was noted. Contrarily, elevated LDL-C was the commonest single lipid disorder (84.25%). Hypercholesterolemia was the least common disorder. Increasing BMI was found to be independently associated with hypercholesterolemia (OR: 1.19). Similarly, age (OR: 0.97) and being a rural resident (OR: 2.61) were independent factors associated with hypertriglyceridemia. Furthermore, being an urban resident (OR: 2.25) and increasing BMI (OR: 1.77) were also significantly associated with high LDL-C. Conclusion: Mixed dyslipidemias were observed in the majority of the patients. Age, BMI, and residence were noted to be independently associated with abnormal lipids. Early screening and proper management should be encouraged to minimize this significant cardiovascular risk.

2.
Curr Top Med Chem ; 18(9): 779-786, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29807517

RESUMO

BACKGROUND: Antimicrobial drug resistance is an emerging problem, which leads to a failure in the control of infectious diseases thereby, adversely affecting patient care and reducing effective management of infectious diseases globally. Thus, search for new and more effective alternatives is needed. Daphne retusa Hemsl. (Daphne) has medicinal values and is reported to be widely used in curing a variety of human ailments. OBJECTIVE: Current study assesses in-vitro antimicrobial activity of the crude extract of D.retusa (whole plant) and its derived fractions against clinically isolated human pathogenic bacteria and fungi. MATERIALS AND METHODS: Whole plant of D.retusa was powder dried and then extracted with methanol (E1). The resultant was fractionated to give Chloroform fraction (E2), Butanol fraction (E3) and Ethyl acetate fraction (E4). The crude extract and derived fractions were assessed for antimicrobial and antifungal activity by using agar well diffusion method and their MICs were found following Clinical and Laboratory Standard Institute (CLSI) guidelines. RESULT: Our study shows that D.retusa has very good inhibitory action against different bacterial and fungal strains. All of the extracts were active against almost every microorganism used in the study. E2 has the maximum percent of inhibition against bacterial growth while E1 has themaximum percent of inhibition against fungal growth. Streptococcus pneumonia was the most susceptible bacteria while among fungi, Gongronella butleri showed highest susceptibility. CONCLUSION: Results justify the use of D. retusa in the treatment of microbial infections. For the development of a novel antibiotic, the crude extract and its derived fractions need further exploration; with emphasis to isolate and identify the active constituents that are responsible for antibacterial and antifungal activity.


Assuntos
Antibacterianos/farmacologia , Antifúngicos/farmacologia , Bactérias/efeitos dos fármacos , Bactérias/patogenicidade , Daphne/química , Fungos/efeitos dos fármacos , Fungos/patogenicidade , Antibacterianos/química , Antibacterianos/isolamento & purificação , Antifúngicos/química , Antifúngicos/isolamento & purificação , Humanos , Testes de Sensibilidade Microbiana
3.
Artigo em Inglês | MEDLINE | ID: mdl-25183498

RESUMO

The goal of this study was to explore the aerial parts of Artemisia scoparia (crude extract, total flavonoid contents, and aqueous fraction) for protein denaturation potential. The crude extract provoked marked attenuation of thermal-induced denatured protein in a concentration-dependent manner with maximum inhibition of 54.05 µg/mL at 500 µg/mL and IC50 of 449.66 µg/mL. When total flavonoid contents were studied, it illustrated most dominant activity concentration dependently with maximum amelioration of 62.16 µg/mL at 500 µg/mL and IC50 of 378.35 µg/mL. The aqueous fraction also exhibited significant activity with maximum of 56.75% inhibition at 500 µg/mL and IC50 of 445.10 µg/mL. It can be concluded on the basis of the results that the crude extract, flavonoid contents, and aqueous fraction of the plant possessed significant inhibition on thermal-induced denatured protein.


Assuntos
Artemisia/química , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Desnaturação Proteica/efeitos dos fármacos , Albuminas/química , Análise de Variância , Aspirina/farmacologia , Flavonoides/análise , Flavonoides/química , Componentes Aéreos da Planta/química
4.
Toxicol Ind Health ; 31(10): 920-3, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23572393

RESUMO

The current study was aimed to scrutinize acetylcholinesterase (AchE) inhibitory profile of two antidepressants, diazepam and phenobarbitone. The experimental designed was based on Michaelis-Menten parameters (apparent Michaelis constant (aKm) and apparent maximum velocity (aVm)) that estimate inhibition (%) as well as the type of inhibition (mechanism). The results showed marked inhibition of AchE by diazepam and the values of aKm and aVm were 65.5% and 52.63%, respectively. These values suggested a competitive type of antagonism for diazepam. Similar trend of antagonism was shown by phenobarbitone when it was subjected to the challenge of AchE with aKm and aVm values of 51.99% and 71.80%, respectively. It is concluded that diazepam and phenobarbitone exhibited prominent AchE attenuation apart from their well-established antidepressant activity, which could be more useful in related diseased conditions.


Assuntos
Acetilcolinesterase/efeitos dos fármacos , Antidepressivos/farmacologia , Diazepam/farmacologia , Eritrócitos/efeitos dos fármacos , Eritrócitos/enzimologia , Fenobarbital/farmacologia , Humanos , Cinética
5.
Pak J Pharm Sci ; 27(2): 261-4, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24577912

RESUMO

The present study deals with the erythrocytic acetylcholinesterase inhibitory activity of paracetamol and chloroquine in an in vitro protocol using Michaelis Menten parameters (Apparent Michaelis Constant (aKm) and Apparent Maximum Velocity (aVm). Paracetamol showed marked inhibition of the erythrocytic acetylcholinesterase. The inhibitory values for aKm and aVm were 65.6% 51.36% respectively, which reduced with respect to control and therefore, proposed an un-competitive type of antagonism. When chloroquine was tested, it showed 45.14% inhibition for aKm which increased while 69.21% for aVm decreased with respect to control; proposed a mixed type of antagonism. In conclusion, the cholinergic intervention by paracetamol in this study suggested a new mechanism for its analgesic activity as acetylcholinesterase inhibitors have already shown both peripheral and central analgesic activity, while the cholinergic activation by chloroquine provided explanation for some of its side effects.


Assuntos
Acetaminofen/farmacologia , Acetilcolinesterase/sangue , Analgésicos não Narcóticos/farmacologia , Antimaláricos/farmacologia , Cloroquina/farmacologia , Inibidores da Colinesterase , Eritrócitos/efeitos dos fármacos , Eritrócitos/enzimologia , Humanos , Técnicas In Vitro , Cinética
6.
J Evid Based Complementary Altern Med ; 19(2): 99-103, 2014 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-24647089

RESUMO

Joshanda is a polyherbal product that is commonly used in the treatment of cold and flu usually accompanied by fever. The present study was designed to scrutinize the antipyretic activity of a decoction of Joshanda and its total saponin and sterol contents in brewer's yeast induced febrile mice. The results revealed marked attenuation of induced pyrexia by the decoction and its saponin contents during various assessment times (1-5 hours) in a dose-dependent manner, which were not supported by sterol contents. The maximum antihyperthermic effect of the decoction and saponin contents were 75.38% and 81.32%, respectively, at 300 mg/kg i.p. This findings suggested that Joshanda extracts strongly ameliorated induced pyrexia and thus validated it as a useful household remedy for cold and flu accompanied by fever.


Assuntos
Antipiréticos/farmacologia , Preparações de Plantas/farmacologia , Saponinas/farmacologia , Esteróis/farmacologia , Animais , Antipiréticos/química , Modelos Animais de Doenças , Feminino , Febre/tratamento farmacológico , Masculino , Camundongos , Fitoterapia/métodos , Preparações de Plantas/química , Saponinas/química , Esteróis/química
7.
J Enzyme Inhib Med Chem ; 26(4): 480-4, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21067437

RESUMO

Three new phloroglucinol type compounds Indigoferin-A (1), Indigoferin-B (2) and Indigoferin-C (3), along with a known compound ß-sitosterol were isolated from the Indegofera gerardiana Wall. The structures of Indigoferin-A (1), Indigoferin-B (2), and Indigoferin-C (3) were deduced on the basis of spectroscopic techniques (EI-MS, HREI-MS, (1)H NMR, (13)C NMR, HMQC, and HMBC). The urease inhibition studies on all the four compounds have also been carried out.


Assuntos
Inibidores Enzimáticos/farmacologia , Glicosídeos/farmacologia , Indigofera/química , Cetonas/farmacologia , Manosídeos/farmacologia , Floroglucinol/análogos & derivados , Urease/antagonistas & inibidores , Inibidores Enzimáticos/química , Inibidores Enzimáticos/isolamento & purificação , Glicosídeos/química , Glicosídeos/isolamento & purificação , Cetonas/química , Cetonas/isolamento & purificação , Manosídeos/química , Manosídeos/isolamento & purificação , Estrutura Molecular , Floroglucinol/química , Floroglucinol/isolamento & purificação , Floroglucinol/farmacologia , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação , Extratos Vegetais/farmacologia , Estereoisomerismo , Relação Estrutura-Atividade
8.
J Enzyme Inhib Med Chem ; 24(1): 224-9, 2009 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-18825532

RESUMO

The antibacterial, antifungal, acute cytotoxicity, phytotoxicity and insecticidal profile of the crude extract and various fractions of Indigofera gerardiana have been studied. Six bacterial and fungal strains were used, of which Samonella typhi and Microsporum canis were the most susceptible strains with MICs 0.37 mg/mL and 0.09 mg/mL, respectively. The crude extract and the fractions showed low insecticidal activity against Sitophilus oryzae, Rhyzopertha dominica and Callosbruchus analis but no activity against Tribolium castaneum. The brine shrimp lethality assay showed absence of any measurable cytotoxicity of the crude extract and fractions, showing a good safety profile at a preliminary level. All the fractions except crude extract revealed profound and highly significant herbicidal activity against Lemna minor at the concentration of 1000 microg/mL. Indigofera gerardiana was shown by in-vitro assays to be a potential source for natural antifungal, antibacterial and herbicidal agents.


Assuntos
Antibacterianos/farmacologia , Antifúngicos/farmacologia , Citotoxinas/farmacologia , Herbicidas/farmacologia , Indigofera/química , Inseticidas/farmacologia , Extratos Vegetais/farmacologia , Animais , Antibacterianos/isolamento & purificação , Antifúngicos/isolamento & purificação , Citotoxinas/isolamento & purificação , Herbicidas/isolamento & purificação , Inseticidas/isolamento & purificação , Testes de Sensibilidade Microbiana , Extratos Vegetais/isolamento & purificação
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