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1.
Drug Chem Toxicol ; 46(3): 588-596, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-35506235

RESUMO

Kava is a herbal supplement and beverage made from the Piper methysticum plant, which is known for its recreational use as a mood enhancer, relaxation, as well as pain relief for centuries. Kava is widely used among alcoholics, but it is dangerous and potentially fatal. The objectives of this study were to examine the sub-acute toxicity effects of different doses of 70% kavalactone (KL) in rats by oral application, as well as to elucidate the mechanisms of toxicity alone and in combination with ethanol (EtOH). The most common side effects observed were abnormal breathing, ataxia, lethargy, loss of appetite, indigestion, and loss of coordination, especially in the 800 mg/kg bw, po bodyweight dosage of kava treatment group alone, and in combination with EtOH. In the sub-acute study, there were dose-related decreases in body weight, feed intake, and water consumption rates. Gross and histopathological findings revealed that the liver was abnormal in color, size, consistency, and the weight significantly increased at a dose of 800 mg/kg bw, po, with KL alone and a greater increase in combination with EtOH. Hepatocellular hypertrophy (HP) and necrosis with Kupffer cells hyperplasia were observed in the periacinar zone of all rats dosed with KL (800 mg/kg bw, po) alone, and extensive changes were observed in combination with EtOH. The periportal (Z1) and mid-zonal (Z2) areas of hepatocytes were less affected as compared to the periacinar zone. These results demonstrate that EtOH exacerbated the sedative and hypnotic activity of KL, and markedly increased toxicity. The histopathological results supported the clinical and biochemical findings and the severity of hepatic damage in a dose-dependent manner.


Assuntos
Etanol , Fígado , Ratos , Animais , Etanol/toxicidade , Suplementos Nutricionais
2.
Biochem Biophys Res Commun ; 589: 234-239, 2022 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-34933198

RESUMO

The effects of nitric oxide modulators (NO-modulators) and antioxidants on acute (RSx1) restraint stress induced endocrine, cellular and oxidative/nitrosative stress markers was studied in Wistar rats. The results of our study revealed that exposure to RS(x1) enhanced malondialdehyde (MDA), heat shock protein (HSP-70), corticosterone, nuclear factor kappa B (NF-κB) levels and suppressed glutathione (GSH), superoxide dismutase (SOD) and total nitrites and nitrates (NOx) levels. NO precursor and NO synthase inhibitors were found to differentially modulate stress mechanisms, by altering NF-κB, HSP-70 and corticosterone levels. l-Ascorbic acid significantly suppressed acute stress induced elevation of NF-κB and HSP-70 levels depicting protective effects, as also evidenced by reversal of elevated plasma corticosterone levels. Therefore, modulation of oxidative and nitrosative pathways, offers an approach in modulating stress induced changes associated with various disorders.


Assuntos
Antioxidantes/farmacologia , Biomarcadores/metabolismo , Sistema Endócrino/metabolismo , Óxido Nítrico/metabolismo , Estresse Psicológico/metabolismo , Doença Aguda , Animais , Arginina/farmacologia , Corticosterona/sangue , Feminino , Glutationa/metabolismo , Proteínas de Choque Térmico HSP70/metabolismo , Masculino , Malondialdeído/metabolismo , NF-kappa B/metabolismo , Nitratos/metabolismo , Óxido Nítrico Sintase/antagonistas & inibidores , Óxido Nítrico Sintase/metabolismo , Nitritos/metabolismo , Ratos Wistar , Restrição Física , Estresse Psicológico/sangue , Superóxido Dismutase/metabolismo
3.
Bioorg Chem ; 114: 105099, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34174635

RESUMO

A series of the title curcuminoids with structural variance in the heteroatom of the cycloalkanone and the p-substituents of the phenyl rings were tested for their activities against Leishmania major and Toxoplasma gondii parasites. The majority of them showed high activities against both parasite forms with EC50 values in the sub-micromolar concentration range. Bis(p-pentafluorothio)-substituted 3,5-di[(E)-benzylidene]piperidin-4-one 1b was not just noticeable antiparasitic, but also exhibited a considerable selectivity for L. major promastigotes over normal Vero cells. While derivatives differing only in the p-phenyl substituents being CF3 or SF5 showed similar antiparasitic activities, the cyclic ketone hub was more decisive both for the anti-parasitic activities and the selectivities for the parasites vs. normal cells. QSAR calculations confirmed the observed structure-activity relations and suggested structural variations for a further improvement of the antiparasitic activity. Docking studies based on DFT calculations revealed L. major pteridine reductase 1 as a likely molecular target protein of the title compounds.


Assuntos
Antiparasitários/farmacologia , Cicloparafinas/farmacologia , Diarileptanoides/farmacologia , Leishmania major/efeitos dos fármacos , Toxoplasma/efeitos dos fármacos , Antiparasitários/síntese química , Antiparasitários/química , Cicloparafinas/química , Diarileptanoides/síntese química , Diarileptanoides/química , Relação Dose-Resposta a Droga , Estrutura Molecular , Testes de Sensibilidade Parasitária , Relação Estrutura-Atividade
4.
J Appl Toxicol ; 41(7): 1115-1126, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-33171535

RESUMO

Extensive use of triclosan (2,4,4'-trichloro-2'-hydroxydiphenyl ether) as an antimicrobial agent in household and personal care products has resulted in global exposure of the human population. Its presence in human tissues, including milk, and its oestrogen-disrupting properties raise concerns for an involvement in breast cancer. Because metastatic tumour spread is the main cause of breast cancer mortality, we have investigated the effects of triclosan on cell migration and invasion using three human breast epithelial cell lines and using concentrations comparable with those in human tissues. Long-term exposure to 10-7 M of triclosan resulted in increased migration and invasion as measured by xCELLigence technology for all three cell lines, for the immortalized but nontransformed MCF-10F breast epithelial cells (after 28 weeks), the oestrogen-responsive MCF-7 breast cancer cells (after 17 weeks) and the oestrogen-unresponsive MDA-MB-231 breast cancer cells (after 20 weeks). The effects were therefore not limited to cancerous cells or to oestrogen-responsive cells. This was paralleled in the MCF-10F and MCF-7 (but not MDA-MB-231) cells by a reduction in levels of E-cadherin mRNA as measured by reverse transcription-polymerase chain reaction (RT-PCR) and of E-cadherin protein as measured by western immunoblotting, suggesting a mechanism involving epithelial-to-mesenchymal transition. This adds triclosan to the increasing list of ingredients of personal care products that can not only enter human breast tissue and increase cell proliferation but also influence cell motility. If mixtures of components in household and personal care products contribute to increasing cell migration and invasion, then reduction in exposure could offer a strategy for reducing breast cancer spread.


Assuntos
Anti-Infecciosos Locais/toxicidade , Triclosan/toxicidade , Antígenos CD , Caderinas/genética , Linhagem Celular Tumoral , Movimento Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Células Epiteliais/metabolismo , Transição Epitelial-Mesenquimal/efeitos dos fármacos , Estrogênios/metabolismo , Regulação Neoplásica da Expressão Gênica , Humanos , Células MCF-7 , Invasividade Neoplásica , RNA Mensageiro/genética
5.
Molecules ; 26(24)2021 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-34946592

RESUMO

The Curcuma longa plant is endowed with multiple traditional and therapeutic utilities and is here explored for its phytochemical constituents and cytotoxic potential. Turmeric rhizomes were extracted from three different solvents and screened for the presence of different phytochemical constituents, observation of which indicated that the polar solvents favoured extraction of greater versatile phytochemical constituents. These extracts were investigated for their cytotoxic potential by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay on three different of cell lines including SCC-29B (oral cancer cell line), DU-145 (prostate cancer cell line) and the Vero cell line (healthy cell line/non-cancerous cell line). This assay was performed by taking three extracts from isolated curcuminoids and a pure bioactive compound bisdemethoxycurcumin (BD). Bisdemethoxycurcumin was isolated from curcuminoids and purified by column and thin-layer chromatography, and its structural characterisation was performed with different spectroscopic techniques such as FTIR, NMR (1H Proton and 13C Carbon-NMR) and LC-MS. Amongst the extracts, the ethanolic extracts exhibited stronger cytotoxic potential against the oral cancer cell line (SCC-29B) with an IC50value of 11.27 µg/mL, and that this was too low of a cytotoxicity against the Vero cell line. Although, curcuminoids have also shown a comparable cytotoxic potential against SCC-29B (IC50 value 16.79 µg/mL), it was not as potent against the ethanolic extract, and it was even found to be cytotoxic against healthy cell lines at a very low dose. While considering the isolated compound, bisdemethoxycurcumin, it also possessed a cytotoxic potential against the prostate cancer cell line (DU-145) (IC50 value of 93.28 µg/mL), but was quite safe for the healthy cell line in comparison to doxorubicin.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Curcuma/química , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/farmacologia , Animais , Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/isolamento & purificação , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Chlorocebus aethiops , Cromatografia Líquida de Alta Pressão , Relação Dose-Resposta a Droga , Doxorrubicina/farmacologia , Humanos , Estrutura Molecular , Compostos Fitoquímicos/química , Compostos Fitoquímicos/isolamento & purificação , Extratos Vegetais/química , Extratos Vegetais/isolamento & purificação , Relação Estrutura-Atividade , Células Vero
6.
J Cell Biochem ; 120(1): 232-242, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30171725

RESUMO

The role of niacin's metabolite, nicotinamide adenine dinucleotide (NAD), in DNA repair via base-excision repair pathway is well documented. We evaluated if niacin deficiency results in genetic instability in normal human fetal lung fibroblasts (MRC-5), and further, does it leads to enhanced accumulation of cigarette smoke-induced genetic damage? MRC-5 cells were grown discretely in niacin-proficient/deficient media, and exposed to nicotine-derived nitrosamine ketone (NNK, a cigarette smoke carcinogen). Niacin deficiency abated the NAD polymerization, augmented the spontaneous induction of micronuclei (MN) and chromosomal aberrations (CA) and raised the expression of 10 genes and suppressed 12 genes involved in different biological functions. NNK exposure resulted in genetic damage as measured by the induction of MN and CA in cells grown in niacin-proficient medium, but the damage became practically marked when niacin-deficient cells were exposed to NNK. NNK exposure raised the expression of 16 genes and suppressed the expression of 56 genes in cells grown in niacin-proficient medium. NNK exposure to niacin-deficient cells raised the expression of eight genes including genes crucial in promoting cancer such as FGFR3 and DUSP1 and suppressed the expression of 33 genes, including genes crucial in preventing the onset and progression of cancer like RASSF2, JUP, and IL24, in comparison with the cells grown in niacin-proficient medium. Overall, niacin deficiency interferes with the DNA damage repair process induced by chemical carcinogens like NNK, and niacin-deficient population are at the higher risk of genetic instability caused by cigarette smoke carcinogen NNK.


Assuntos
Neoplasias/genética , Niacina/deficiência , Fumantes , Carcinógenos/farmacologia , Linhagem Celular , Aberrações Cromossômicas/efeitos dos fármacos , Dano ao DNA/efeitos dos fármacos , Reparo do DNA/efeitos dos fármacos , Pesquisa Fetal , Fibroblastos/fisiologia , Expressão Gênica , Humanos , Pulmão/citologia , Micronúcleos com Defeito Cromossômico/induzido quimicamente , Testes para Micronúcleos , NAD/metabolismo , Nitrosaminas/farmacologia , Polimerização
7.
J Appl Toxicol ; 37(4): 454-461, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27601420

RESUMO

Dermal absorption of components of personal care products (PCPs) may contribute to breast cancer development. Cyclic volatile methylsiloxanes (cVMS) are used widely in the formulation of PCPs, and their presence has been recently detected in human blood. The objectives of this study were to investigate any genotoxic effects after short- (1 week) or longer-term (30 weeks) exposure to hexamethylcyclotrisiloxane (D3), octamethylcyclotetrasiloxane (D4) or decamethylcyclopentasiloxane (D5) in MCF-10 A and MCF-10F immortalized non-transformed human breast epithelial cells. Genotoxic effects were assessed by an ability of cells to grow in suspension culture, from DNA damage measured by comet assays, and from a reduction in levels of DNA repair proteins measured by RT-PCR and western immunoblotting. Dose-dependent anchorage-independent growth in methocel culture was observed after exposure to D3 (10-13 M-10-5 M) and D4/D5 (10-9 M-10-5 M). DNA damage was measured by the comet assay after 1-h exposure to D3 (10-6 M-10-5 M) and D4 (10-5 M). BRCA1 mRNA and BRCA1 protein levels were reduced after 30-week exposure to 10-5 M D4 and D5 in both cell lines. Reduced levels of mRNAs for other DNA repair proteins (BRCA2, ATM, ATR, CHK1 and CHK2) were also observed after exposure to 10-5 M D5 in both cell lines, and some reductions after exposure to D3 and D4. If cVMS can not only enable anchorage-independent growth of non-transformed breast epithelial cells and damage DNA, but also compromise DNA repair systems, then there is the potential for them to impact on breast carcinogenesis. Further risk assessment now requires information concerning the extent to which cVMS may be present in human breast tissues. Copyright © 2016 John Wiley & Sons, Ltd.


Assuntos
Proteína BRCA1/genética , Mama/citologia , Cosméticos/toxicidade , Células Epiteliais/efeitos dos fármacos , Mutagênicos/toxicidade , Siloxanas/toxicidade , Mama/efeitos dos fármacos , Linhagem Celular Tumoral , Células Cultivadas , Ensaio Cometa , Cosméticos/química , Dano ao DNA , Enzimas Reparadoras do DNA/biossíntese , Enzimas Reparadoras do DNA/genética , Feminino , Humanos , Mutagênicos/química , Siloxanas/química
8.
Saudi J Biol Sci ; 31(3): 103917, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38283773

RESUMO

Cytochrome P450 Family 1 Subfamily A Member 1 (CYP1A1) gene is one of the sub-members of CYP450 family member and it encodes with the families of drug metabolizing enzyme families along with the cancers and leukemias. Among leukemias, AML is considered to be one of the important leukemia which attack the older adults. The aim of this study is to explore the role of A4889G polymorphism in CYP1A1 gene in acute myeloid leukemia (AML) in the Saudi population. This study was designed as an experimental case-control study in which 100 AML cases and 100 controls were selected. This in vivo study was carried out using genomic DNA extraction, polymerase chain reaction and agarose gel electrophoresis and then BsrDI restriction enzyme to digest the A4889G polymorphism of the PCR products. In this study, 200 subjects were digested and based on the appearance of the bands, genotypes were categorized. The attained data was used to calculate the clinical details as well as genotype analysis. The study results confirmed AG genotype (OR = 3.23, CI = 1.60-6.55, p = 0.0008), AG + GG (OR = 3.47, CI = 1.76-6.86, p = 0.0002) and GG + AA (OR = 12.47, CI = 6.18-15.17, p < 0.0001) and G vs A (OR = 3.15, CI = 1.71-5.81, p = 0.0001) were associated in AML cases. In conclusion, we confirm that A4889G polymorphism is associated with AML in the Saudi population.

9.
Cureus ; 16(4): e58889, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38800147

RESUMO

BACKGROUND: Coronavirus disease 2019 (COVID-19) has had a significant impact on global health and healthcare systems. This retrospective study aimed to assess the association between biochemical parameters and outcomes in COVID-19 patients in Jazan, Saudi Arabia. METHODS: After establishing the inclusion criteria and obtaining ethical approval, data from 156 reverse transcriptase-polymerase chain reaction (RT-PCR)-confirmed COVID-19 patients were collected from electronic medical records from a general hospital in Samtah, Jazan, from April 2020 to October 2021. The collected data included patient demographics and liver, kidney, heart, and electrolyte function marker levels. Descriptive, inferential, and principal component analyses were conducted. RESULTS: Survival rates varied according to age and body mass index (BMI). Statistical analysis demonstrated that the levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), sodium (Na), potassium (K), blood urea nitrogen (BUN), creatinine (Cr), creatine kinase (CK), CK myocardial band (MB), and lactate dehydrogenase (LDH) were significantly higher (P < 0.05) than the reference values, as assessed using the one-sample t-test. Principal component analysis (PCA) also revealed an underlying pattern in the variation of these biochemical markers. These findings suggest that certain biochemical parameters may serve as useful indicators for monitoring the condition of COVID-19 patients. CONCLUSION: This retrospective study in Jazan, Saudi Arabia highlights the association between biochemical parameters and outcomes in COVID-19 patients. Elevated levels of markers of liver, kidney, heart, and electrolyte function suggest organ damage and dysregulation. The pattern identified through PCA provides insights into disease severity. Monitoring these parameters may serve as valuable indicators for assessing COVID-19 patients. Further research is needed to validate these findings, explore their potential for personalized treatment strategies, and improve patient outcomes during the ongoing pandemic.

10.
Heliyon ; 10(6): e27201, 2024 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-38545132

RESUMO

Background: Accumulating evidence indicates that the incidence of cancer is increasing in the United Arab Emirates (UAE). This analysis aimed to determine the current cancer research output in the UAE to guide future national research. Methods: The Scopus database was searched for cancer-related bibliographic data from the UAE. The number of publications, citation analysis, co-authorship of the author, institution, and country, keyword co-occurrence, and reference co-citations were analyzed using the R-studio bibliometrics package and VOSviewer software. Results: A total of 1678 journal articles were retrieved from 1981 to 2022. Cancer research in the UAE (UCR) is increasing at a rate of 14.64% (R-squared = 0.75; F = 46.477; P<0.001). The UAE had a 0.06% participation rate in terms of the number of original articles. The rate of international co-authorship is 40.23%. The U.S.A., U.K., Egypt, Saudi Arabia, India, and Canada had more than 100 co-authored documents from 156 countries that collaborated with the U.A.E. Conclusions: Compared to other nations, the UAE has fewer publications on cancer, although the number is growing. The current report provides an up-to-date and in-depth summary of the trends in UCR. This project is an excellent place for researchers interested in conducting data-mapping work in this field.

11.
Acta Biochim Pol ; 70(3): 503-507, 2023 Sep 16.
Artigo em Inglês | MEDLINE | ID: mdl-37715989

RESUMO

INTRODUCTION: Acute myeloid leukemia (AML) is a clinically defined heterogeneous disease whose pathophysiology is currently unknown. The association of NAT2 acetylation profiles with human cancer risks, particularly with AML, was investigated in molecular epidemiological studies. Additionally, the NAT2 gene was carried out with acute lymphoid leukemia and other cancers. AIM: In this case-control study, C481T (rs1799929) and G857A (rs1799931) polymorphism studies were investigated in diagnosed AML patients in the Saudi population. METHODS: This case-control study included 100 AML patients and 100 control subjects recruited in Saudi Arabia. The C481T and G857A polymorphisms were genotyped using specific primers and restriction enzymes. Statistical analysis was performed on the AML patients and controls using chi-square tests, genotyping, and allele frequencies (odds ratios, 95% of confidence intervals, and P-values). RESULTS: Hardy Weinberg Equilibrium was determined to be both within and outside of the G857A and C481T polymorphisms. The allele and genotyping frequencies in AML and control subjects were analyzed, and the results corroborated the unfavorable connection with C481T (CC vs CT+TT; OR-1.12; (95% CIs: 0.64-1.96); P=0.67 and T vs C; OR-0.89; (95% CIs: 0.59-1.35) and P=0.60) and G857A polymorphisms (GG vs GA+AA; OR-1.50; (95% CIs: 0.83-2.71); P=0.17 and A vs G; OR-0.71; (95%CIs: 0.43-1.19) and P=0.19) in the NAT2 gene. CONCLUSION: The study results revealed a negative correlation as well as a protective factor for AML with the C481T and G857A polymorphisms in the NAT2 gene.


Assuntos
Arilamina N-Acetiltransferase , Leucemia Mieloide Aguda , Humanos , Estudos de Casos e Controles , Alelos , Frequência do Gene , Polimorfismo Genético , Leucemia Mieloide Aguda/genética , Arilamina N-Acetiltransferase/genética
12.
J Biomol Struct Dyn ; : 1-19, 2023 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-37948309

RESUMO

A wide variety of natural products have been widely used in chemoprevention therapy because they have antioxidant, anti-inflammatory, and anticancer activity. In the present study, we shed light on the 5th day germinated sprouts of N. sativa seeds and evaluated them against HDAC inhibition and antioxidant activity. The extract from the seed and sprout was extracted and characterised by LC-MS/MS, FTIR, and NMR to reveal its chemical composition, especially thymol (THY) and thymoquinone (TQ). Hepatocellular carcinoma (HCC) is a global health concern as it is a major lifestyle disease. Hence, incorporating herbal-based therapeutic compounds into everyday routines has become an attractive alternative for preventing hepatic diseases. Histone deacetylase (HDAC) inhibition (HDACi) is emerging as a promising therapeutic strategy for managing various carcinomas including HCC. Therefore, the 5th day of N. sativa can be used as a potential anticancer agent by inhibiting HDAC activity, as it is reported to have an important role in the management of oxidative stress. The bioactive compound of N. sativa, i.e. thymoquinone, also showed a good binding affinity with the HDAC protein (3MAX) with a stable interaction in an in silico study as compared to the standard drug (Trichostatin A) and thymol.Communicated by Ramaswamy H. Sarma.

13.
Acta Biochim Pol ; 69(1): 211-214, 2022 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-35189054

RESUMO

Progress in pathogenesis and therapy of acute myeloid leukemia (AML) is presently accelerating. The Janus kinase 2 gene (JAK2) mutations are rare in de novo AML. The gene codes for the tyrosine kinase that has a significant role in the signal transduction in hematopoietic cells. The aim of this study was to induce V617F mutation in the JAK2 gene in the AML patients diagnosed in the Saudi population. In this case-control study, 100 AML patients and 100 healthy controls were recruited. Genotyping was performed with polymerase chain reaction followed with restriction fragment length polymorphism analysis. The mean age of the AML patients and healthy controls was found to be almost similar (p=0.60). In this study, 15% of VF mutation was documented in the AML cases and none of the mutations were documented either in FF mutation in AML cases or VF and FF mutations in the healthy control subjects. VF mutations [VF vs VV; OR-18.79; (95%CIs: 2.442-144.6) and p=0.0001; F vs V; OR-87.76; (95% CIs: 11.76-654.7) and p<0.0001] were found to be significantly associated when compared between AML cases and healthy controls. In conclusion, the V617F mutation showed the positive association in the AML patients diagnosed in the Saudi population.


Assuntos
Janus Quinase 2/genética , Leucemia Mieloide Aguda/genética , Mutação , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Técnicas de Genotipagem/métodos , Humanos , Leucemia Mieloide Aguda/diagnóstico , Masculino , Programas de Rastreamento/métodos , Pessoa de Meia-Idade , Arábia Saudita , Adulto Jovem
14.
J Infect Public Health ; 15(11): 1270-1275, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36272392

RESUMO

BACKGROUND: Monkeypox viral infection is considered as global public health and a rare disease caused by Monkeypox virus (MPXV), which is caused by smallpox-like virus and it causes pustules all over the body. MPV is an emerging zoonotic infection with sporadic occurrence globally and multiple outbreaks have been reported in African regions. The story of MPXV has been started since 1970 in Democratic republic of Cargo. The high cases of MPXV was majorly detected in Congo Rain Forest region in Africa. Animal-human (Zoonotic) transmission occurred, although the individual infected animal was not recognized. Human-human transmission occurs and is difficult until bodily fluids or respiratory droplets are exchanged. If a specific individual uses an infected person's towels or bed sheets, infection may occur. AIM: The aim of this review is to document the methods of diagnosis, treatments (vaccines) and future role of MPXV in human population. OUTPUT: The diagnosis is confirmed mainly through clinical diagnosis and then laboratory diagnosis such as cell-culture, serological and Polymerase Chain Reaction tests. Presently, there is no vaccine for MPXV but the smallpox vaccine will protect. The old vaccine includes antivirals approved for use against Orthopoxvirus, such as tecovirimat, which can treat up to 85 % of MPXV in humans. MPXV is now considered as transmission virus which affects from human to humans. The fatality rate was documented to be 3-10 % in children and in adults it is very low. CONCLUSION: This review concludes MPXV is not as contagious as COVID-19 but proper measures should be taken as mentioned in this review to avoid MPXV. Presently, controlling MPXV presents unique challenges, and future prospective global studies in antivirals for this disease, as well as an MPXV vaccines, are recommended to eliminate this virus.


Assuntos
COVID-19 , Mpox , Vacinas , Animais , Criança , Humanos , Monkeypox virus , Mpox/diagnóstico , Mpox/epidemiologia , Antivirais/uso terapêutico
15.
Artigo em Inglês | MEDLINE | ID: mdl-35795278

RESUMO

Background: Diabetes is considered one of the most encyclopedic metabolic disorders owing to an alarming rise in the number of patients, which is increasing at an exponential rate. With the current therapeutics, which only aims to provide symptomatic and momentary relief, the scientists are shifting gears to explore alternative therapies which not only can target diabetes but can also help in limiting the progression of diabetic complications including diabetic neuropathy (DN). Methods: Tecoma stans leaf methanolic extract was prepared using the Soxhlet method. A streptozotocin (STZ; 45 mg/kg)-induced diabetic animal model was used and treatment with oral dosing of T. stans leaf extract at the different doses of 200 mg/kg, 300 mg/kg, and highest dose, i.e., 400 mg/kg, was initiated on day 3 after STZ administration. The pharmacological response for general and biochemical (angiogenic, inflammatory, and oxidative) parameters and behavioral parameters were compared using Gabapentin as a standard drug with the results from the test drug. Results: Parameters associated with the pathogenesis of diabetic neuropathy were evaluated. For general parameters, different doses of T. stans extract (TSE) on blood sugar showed significant effects as compared to the diabetic group. Also, the results from biochemical analysis and behavioral parameters showed significant positive effects in line with general parameters. The combination therapy of TSE at 400 mg/kg with a standard drug produced nonsignificant effects in comparison with the normal group. Conclusion: The leaves of T. stans possess antidiabetic effects along with promising effects in the management of DN by producing significant effects by exhibiting antioxidative, antiangiogenic, and anti-inflammatory properties, which are prognostic markers for DN, and thus, T. stans can be considered as an emerging therapeutic option for DN.

16.
Artigo em Inglês | MEDLINE | ID: mdl-36199544

RESUMO

The study investigated the effects of Zingiber officinale root and Vernonia amygdalina leaf on the brain redox status of Wistar rats. Twenty-four (24) rats weighing 160 ± 20 g were randomly assigned into four (4) groups, each with six (6) rats. Animals in Group 1 (control) were orally administered distilled water (1 mL), while the test groups were orally administered 5 mg/mL of either Z. officinale, V. amygdalina infusion, or a combination of both, respectively, for 7 days. The rats were sacrificed at the end of treatments and blood and tissue were harvested and prepared for biochemical assays. Results showed that administration of V. amygdalina and Z. officinale, as well as their coadministration, reduced the levels of malondialdehyde (MDA), nitric oxide (NO), acetylcholinesterase (AChE), and myeloperoxidase (MPO) in rat brain tissue compared with the control group. Conversely, coadministration of V. amygdalina and Z. officinale increased the levels of reduced glutathione (GSH) in rat brain tissue compared with the control group. However, the administration of the infusions singly, as well as the combination of both infusions, did not have any effect on the rat brain levels of glutathione peroxidase (GPx) and catalase (CAT) antioxidant enzymes compared to the control. Taken together, the findings indicate that the V. amygdalina and Z. officinale tea infusions have favorable antioxidant properties in the rat brain. The findings are confirmatory and contribute to deepening our understanding of the health-promoting effects of V. amygdalina and Z. officinale tea infusions.

17.
Technol Cancer Res Treat ; 21: 15330338221119743, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36533882

RESUMO

A high increase witnessed in type II diabetes mellitus (T2DM) globally has increasingly posed a serious threat to global increases in liver cancer with the association between diabetes mellitus type II and the survival rate in liver cancer patients showing unstable findings. An increase in the development and progression of chronic liver disease from diabetes mellitus patients may be connected to cancer of the liver with several links such as Hepatitis B and C virus and heavy consumption of alcohol. The link between T2DM patients and liver cancer is centered on non-alcoholic fatty liver disease (NAFLD) which could be a serious threat globally if not clinically addressed. Several reports identified metformin treatment as linked to a lower risk of liver cancer prognosis while insulin treatment or sulphonylureas posed a serious threat. Mechanistically, the biological linkage between diabetes type II mellitus and liver cancer are still complex to understand with only the existence of a relationship between NAFLD and high level of energy intake and diabetes mellitus induces hepatic damage, increased liver weight thereby causes multiple pro-inflammatory cytokines that lead to the development of liver cancer. Therefore, this review gives an account of the pathophysiological importance of liver cancer position with T2DM, with the role of NAFLD as an important factor that bridges them.


Assuntos
Diabetes Mellitus Tipo 2 , Neoplasias Hepáticas , Hepatopatia Gordurosa não Alcoólica , Humanos , Hepatopatia Gordurosa não Alcoólica/complicações , Hepatopatia Gordurosa não Alcoólica/terapia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/terapia , Cirrose Hepática/complicações , Neoplasias Hepáticas/complicações
18.
Artigo em Inglês | MEDLINE | ID: mdl-35535159

RESUMO

Perception of hub genes engaged in metastatic gastric cancer (mGC) promotes novel ways to diagnose and treat the illness. The goal of this investigation is to recognize the hub genes and reveal its molecular mechanism. In order to explore the potential facts for gastric cancer, the expression profiles of two different datasets were used (GSE161533 and GSE54129). The genes were confirmed to be part of the PPI network for gastric cancer pathogenesis and prognosis. In Cytoscape, the CytoHubba module was used to discover the hub genes. Responsible hub genes were identified. Data from Kaplan-Meier plotter confirmed the predictive value of these distinct genes in various stages of gastric malignancy. Upregulated and downregulated genes were identified to utilize for further analysis. Positive regulation by a host of viral process, positive regulation of granulocyte differentiation, negative regulation of histone H3-K9 methylation were found in DEGs analysis. In addition, five KEGG pathways were identified as an essential enhancer that include nucleotide excision repair; base excision repair; DNA replication; homologous recombination; and complement and coagulation cascades. POLE, BUB1B, POLD4, C3, BLM, CCT7, PRPF31, APEX1, PSMA7, and CDC45 were chosen as hub genes after combining the PPI results. Our study recommends that BUB1B, CCT7, APEX1, PSMA7, and CDC45 might be potential biomarkers for gastric cancer. These biomarkers are upregulated genes. Therefore, suppression of these genes will increase the survival rate in gastric cancer patients.

19.
Artigo em Inglês | MEDLINE | ID: mdl-35082906

RESUMO

The CLEC-2 receptor protein belongs to the C-type lectin superfamily of transmembrane receptors that have one or more C-type lectin-like domains. CLEC-2 is a physiological binding receptor of podoplanin (PDPN), which is expressed on specific tumour cell types and involved in tumour cell-induced platelet aggregation and tumour metastasis. CLEC-2 and podoplanin-expressing tumour cells interact to increase angiogenesis, tumour development, and metastasis. CLEC-2 is a hemi-immunoreceptor tyrosine-based activation motif (hemi-ITAM) receptor located on platelets and a subset of dendritic cells that are expressed constitutively. This molecule is secreted by activated platelets around tumours and has been shown to inhibit platelet aggregation and tumour metastasis in colon carcinoma by binding to the surface of tumour cells. Pharmacokinetic studies were carried using a DrugLiTo, and molecular docking was performed using AutoDock Tools 1.5.6 (ADT). Twenty-nine bioactive compounds were included in the study, and four of them, namely, piperine, dihydrocurcumin, bisdemethoxycurcumin, and demothoxycurcumin, showed potential antagonist properties against the target. The resultant best bioactive was compared with commercially available standard drugs. Further, validation of respective compounds with an intensive molecular dynamics simulation was performed using Schrödinger software. To the best of our knowledge, this is the first report on major bioactive found on clove as natural antagonists for CLEC-2 computationally. To further validate the bioactive and delimit the screening process of potential drugs against CLEC-2, in vitro and in vivo studies are needed to prove their efficacy.

20.
Saudi J Biol Sci ; 28(1): 911-916, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33199970

RESUMO

Corona viruses (CoV) are known to cause extreme pandemics in the globe. The year 2020 will be a pandemic with the spread of the novel coronavirus (SARS-CoV-2) across the globe. Coronavirus 2019 (COVID-19) has been a part of our scary life for more than a quarter of a year in 2020. The Wuhan market and China have been the most commonly used terms in the world for at least a quarter of 2020. A zoonotic coronavirus has entered organisms to affect organisms for the third season in several centuries. CoV is a global pandemic prompted a drastic and rapid reconfiguration of society. CoV have extraordinary broad genomes of about 30 kilobases of RNA. There is no genetic relationship between the SARS-CoV, MERS and SARS-CoV-2. For health care strategies and for anticipating and preventing potential outbreaks, adequate description of the international spread of COVID-19 virus is imperative. The WHO has declared COVID-19 as endemic to pandemic in the first trimester of 2020. The biggest issues for diagnosis COVID-19 is not established apart from Real-time reverse transcriptase polymerase chain reaction (RT-PCR). In order to monitor the COVID-19 pandemic, testing of active SARS-CoV-2 infections is a fundamental public health method. The vast use of SARS-CoV-2 RT-PCR tests around the world has led to increased availability of test kits, which is also a major bottleneck. The technique RT-PCR was generally agreed in the present scenario to detect SARS-CoV-2 in the human body. This review discusses about the importance of molecular technique for diagnosing the pandemic disease of 2019. In conclusion, RT-PCR was found to be an apt technique for identification of SARS-CoV-2.

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