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1.
Nat Prod Res ; : 1-10, 2023 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-37948554

RESUMO

A new triterpenoid saponin, Ternifoliasaponin (1), together with four known compounds (2-5) chikusetsusaponin IVa (2), chikusetsusaponin IVa methyl ester (3), bonushenricoside B (4) and Dianoside C (5) were isolated from roots of Gardenia ternifolia Schumach. & Thonn (Rubiaceae). The structures of isolated compounds were elucidated on the basis of spectroscopic analysis and chemical methods. The antibacterial activities of compounds (3), and (4) were performed by the Muller-Hinton agar diffusion method. The antimicrobial activities of the compounds were studied on Salmonella typhi (Enterobacteriaceae), Staphylococcus aureus and Pseudomonas aeruginosa microorganisms. Compound (3) at 25 mg/mL, showed moderately sensitive effect (8.0 ˂ DIZ ˂14.0 mm) on S. typhi, S. aureus and P. aeruginosa. Compound (4) at 25 mg/mL and compound (3) at 12.5 mg/mL exhibited moderately sensitive effect on S. typhi and S. aureus. Compound (4) inhibited moderately sensitive the S. typhi and P. aeruginosa colonies at 12.5 mg/mL.

2.
Nat Prod Res ; 37(17): 2830-2840, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36282891

RESUMO

One monoterpene indole alkaloid, atheruramine (1) bearing an ether bridge linking, one hydrobenzoin derivative, tricalydioloside (2) and two ursane-type triterpenes, atherurosides (A and B) (3 and 4) were isolated from the leaves of Tricalysia atherura, together with eight known compounds. The structures of these new compounds were elucidated on the basis of the results of spectroscopic analysis, and the relative configurations of compounds 1-3 were established by NOE difference. Four of the metabolites were screened in vitro against both chloroquine (CQ)-sensitive (3D7) and -resistant (Dd2) strains of Plasmodium falciparum; they were found to exhibit moderate activity against chloroquine-resistant (Dd2) (IC50 64.99-92.29 µg/mL). Meanwhile, crude extract possesses high antiplasmodial activity against both 3D7 and Dd2 strains of P. falciparum (IC50 4.39-7.54 µg/mL) and high selectivity indices values (SI > 10) and was found to be safe.

3.
RSC Adv ; 12(50): 32185-32196, 2022 Nov 09.
Artigo em Inglês | MEDLINE | ID: mdl-36425709

RESUMO

Herein, an integral approach has been made towards the exploration of electronic and structural parameters of four synthesized (DMA with an A-π-A configuration and DMM, DAM, and DMD with a D-π-D configuration) and one designed (DMB-D) novel Schiff base compounds. Bis phenylenediamine derivatives were prepared by condensation of 4,5-dimethyl-o-phenylenediamine (1) with various substituted benzaldehydes (2a-d). The structures of compounds were confirmed by spectroscopic techniques, i.e., UV-visible, FT-IR, and NMR spectroscopy. The DFT-based analysis of entitled compounds was performed via density functional theory utilizing the M06-2X functional in conjugation with the 6-311G(d,p) basis set to acquire geometrical parameters, natural bonding orbital (NBO), the density of states (DOS), non-linear optical (NLO), molecular electrostatic potential (MESP), and natural population analyses. The smallest band gap of (5.446 eV) was noted for DMAvia frontier molecular orbital (FMO) analysis. GRPs were obtained with the aid of E gap values as DMA with the lowest band gap displayed a small magnitude of hardness (2.723 eV) and a large magnitude of softness (0.183 eV). The ß tot values of DMA, DMM, DMB-D, DAM, and DMD were 56.95, 0.43, 2.53, 8.98, and 68.47 times larger than urea (ß tot = 3.71 × 10-31 e.s.u.), respectively. The observed fascinating NLO properties of these novel compounds might be helpful for further advancement in non-linear optics.

4.
Exp Ther Med ; 23(6): 418, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35601073

RESUMO

The recent coronavirus outbreak from Wuhan China in late 2019 caused by severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) resulted in a global pandemic of coronavirus-19 disease (COVID-19). Understating the underlying mechanism of the pathogenesis of coronavirus infection is important not only because it will help in accurate diagnosis and treatment of the infection but also in the production of effective vaccines. The infection begins when SARS-CoV-2 enters the cells through binding of its envelope glycoprotein to angiotensin-converting enzyme2 (ACE2). Gene variations of ACE2 and microRNA (miR)-196 are associated with viral infection and other diseases. The present study investigated the association of the ACE2 rs4343 G>A and miR-196a2 rs11614913 C>T gene polymorphisms with severity and mortality of COVID-19 using amplification refractory mutation system PCR in 117 COVID-19 patients and 103 healthy controls from three regions of Saudi Arabia. The results showed that ACE2 rs4343 GA genotype was associated with severity of COVID-19 (OR=2.10, P-value 0.0028) and ACE2 rs4343 GA was associated with increased mortality with OR=3.44, P-value 0.0028. A strong correlation between the ACE2 rs4343 G>A genotype distribution among COVID-19 patients was reported with respect to their comorbid conditions including sex (P<0.023), coronary artery disease (P<0.0001), oxygen saturation <60 mm Hg (P<0.0009) and antiviral therapy (0.003). The results also showed that the CT genotype and T allele of the miR-196a2 rs11614913 C>T were associated with decreased risk to COVID-19 with OR=0.76, P=0.006 and OR=0.54, P=0.005, respectively. These results need to be validated with future molecular genetic studies in a larger sample size and different populations.

5.
Arch Endocrinol Metab ; 64(5): 528-532, 2021 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-34033292

RESUMO

OBJECTIVE: The objective of this study is to study association between testosterone and diabetes in Kashmiri males. METHODS: A total of 300 males with Type 2 diabetes visited an outpatient and inpatient clinic at Shri Maharaja Hari Singh (SMHS) hospital, Srinagar, J&K India. The blood sugar and HbA1c, which are the markers of diabetes, and sérum testosterone levels were measured. The blood samples from both the cases and controls were collected. RESULTS: Out of 300 subjects, 42% had a testosterone deficiency. A relationship between type 2 diabetic males and healthy males was observed, and testosterone levels were determined to be significantly lower among diabetic males (p < 0.001) when compared to healthy males. Then, we compared diabetic markers among testosterone deficient and normal testosterone level groups; the mean fasting plasma glucose (p = 0.0019) and glycated haemoglobin (HbA1c; p = 0.0449) levels were significantly higher in the testosterone deficient group than in the control group. To elucidate the relationship between the serum total testosterone level and fasting plasma glucose and HbA1c values, Pearson's correlation test was performed. Fasting plasma glucose levels (r = -0.252, p = 0.001) and HbA1c values (r = -0.697, p = 0.001) showed a significant negative correlation with serum testosterone levels among diabetic males. CONCLUSION: This study shows that diabetes causes low testosterone levels among males, and lower testosterone levels can act as a marker for diabetes. Thus, with timely intervention, mortality and co-morbidity associated with diabetes can be prevented.


Assuntos
Diabetes Mellitus Tipo 2 , Glicemia , Hemoglobinas Glicadas/análise , Humanos , Índia , Masculino , Testosterona
6.
Curr Clin Microbiol Rep ; 8(3): 152-166, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33614398

RESUMO

PURPOSE OF REVIEW: Human race is currently facing the wrath of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a highly transmittable and pathogenic RNA virus, causing coronavirus disease 2019 (COVID-19), the worst ever global pandemic. Coronaviruses (CoVs) have emerged as a major public health concern. Urgent global response to COVID-19 outbreak has been to limit spread of SARS-CoV-2 via extensive monitoring and containment. Various treatment regimens have been adopted to manage COVID-19, with known drugs and drug combinations used to decrease the morbidity and mortality associated with COVID-19. Intensive research on various fronts including studying molecular and structural aspects of these viruses and unraveling the pathophysiology and mechanistic basis of COVID-19 aimed at developing effective prophylactic, therapeutic agents and vaccines has been carried out globally. RECENT FINDINGS: No approved antiviral treatment except remdesivir exists for SARS-CoV-2 till date though novel drug targets have been identified. However, worldwide frantic and competitive vaccine development pharmaceutical race has borne fruit in the form of a number of promising candidate vaccines, out of which few have already received emergency use authorization by regulatory bodies in record time. SUMMARY: This review highlights the painstaking efforts of healthcare workers and scientific community to successfully address the COVID-19 pandemic-though damage in the form of severe illness, loss of lives, and livelihood has left a serious mark. Focusing on extensive research on various therapeutic options and antiviral strategies including neutralizing antibodies, potential drugs, and drug targets, light has been shed on various diagnostic options and the amazing vaccine development process as well.

7.
Arch. endocrinol. metab. (Online) ; 64(5): 528-532, Sept.-Oct. 2020. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1131139

RESUMO

ABSTRACT Objective: The objective of this study is to study association between testosterone and diabetes in Kashmiri males. Subjects and methods: A total of 300 males with Type 2 diabetes visited an outpatient and inpatient clinic at Shri Maharaja Hari Singh (SMHS) hospital, Srinagar, J&K India. The blood sugar and HbA1c, which are the markers of diabetes, and sérum testosterone levels were measured. The blood samples from both the cases and controls were collected. Results: Out of 300 subjects, 42% had a testosterone deficiency. A relationship between type 2 diabetic males and healthy males was observed, and testosterone levels were determined to be significantly lower among diabetic males (p < 0.001) when compared to healthy males. Then, we compared diabetic markers among testosterone deficient and normal testosterone level groups; the mean fasting plasma glucose (p = 0.0019) and glycated haemoglobin (HbA1c; p = 0.0449) levels were significantly higher in the testosterone deficient group than in the control group. To elucidate the relationship between the serum total testosterone level and fasting plasma glucose and HbA1c values, Pearson's correlation test was performed. Fasting plasma glucose levels (r = −0.252, p = 0.001) and HbA1c values (r = −0.697, p = 0.001) showed a significant negative correlation with serum testosterone levels among diabetic males. Conclusions: This study shows that diabetes causes low testosterone levels among males, and lower testosterone levels can act as a marker for diabetes. Thus, with timely intervention, mortality and co-morbidity associated with diabetes can be prevented.


Assuntos
Humanos , Masculino , Diabetes Mellitus Tipo 2 , Testosterona , Glicemia , Hemoglobinas Glicadas/análise , Índia
8.
SN Compr Clin Med ; 2(10): 1767-1776, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32864575

RESUMO

Coronavirus disease 2019 (COVID-19), an ongoing global health emergency, is a highly transmittable and pathogenic viral infection caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Emerging in Wuhan, China, in December 2019, it spread widely across the world causing panic-worst ever economic depression is visibly predictable. Coronaviruses (CoVs) have emerged as a major public health concern having caused three zoonotic outbreaks; severe acute respiratory syndrome-CoV (SARS-CoV) in 2002-2003, Middle East respiratory syndrome-CoV (MERS-CoV) in 2012, and currently this devastating COVID-19. Research strategies focused on understanding the evolutionary origin, transmission, and molecular basis of SARS-CoV-2 and its pathogenesis need to be urgently formulated to manage the current and possible future coronaviral outbreaks. Current response to the COVID-19 outbreak has been largely limited to monitoring/containment. Although frantic global efforts for developing safe and effective prophylactic and therapeutic agents are on, no licensed antiviral treatment or vaccine exists till date. In this review, research strategies for coping with COVID-19 based on evolutionary and molecular aspects of coronaviruses have been proposed.

9.
Saudi Pharm J ; 27(3): 312-319, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30976173

RESUMO

Nanobiosensors based on aptamer are extensively being studied as potent analytical tools in clinical analysis. These biosensors provide high sensitivity, fast response, specificity and desired portability in addition to simplicity and decreased cost compared to conventional methods. The purpose of this manuscript is to provide readers with an overview of current advances about electrochemical, electrochemiluminescent and photoelectrochemical aptasensors from the sea of available literature. These are mainly used for determination of protein-based biomarkers, especially for cancer diagnosis. Here in we have given special emphasis on nanosize-based aptasensors which have been reported to show considerable improvement in the analytical performance.

10.
Eur J Cancer Prev ; 28(2): 68-75, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30379684

RESUMO

Globally, colorectal cancer (CRC) is the third most commonly diagnosed cancer in males and the second most commonly diagnosed cancer in females, with 1.4 million new cases and almost 694 000 deaths estimated to have occurred in 2012. The development and progression of CRC is dictated by a series of alterations in diverse genes mostly proto-oncogenes and tumor suppressor genes. In this dreadful disease disturbances different from mutations called as epigenetic regulations are also taken into consideration and are thoroughly investigated. The present study was designed to analyze the promoter hypermethylation of CpG (cytosine, followed by guanine nucleotide) islands of cyclin-dependent kinase inhibitor 2A (P16) and O-methylguanine-DNA methyltransferase (MGMT) genes and its subsequent effect on the protein expression in CRC. The impact of the common functional polymorphism of the catechol-O-methyltransferase (COMT) gene, Val158Met, on promoter hypermethylation of P16 and MGMT genes in CRC was also investigated. The study included 200 CRC cases and equal numbers of normal samples. DNA was extracted using the kit method and methylation specific-PCR was performed for analysis of the promoter hypermethylation status. Total protein was isolated form all CRC cases and western blotting was performed for P16 and MGMT proteins. The COMT Val158Met polymorphism was analyzed by a PCR-restriction fragment length polymorphism assay. Epigenetic analysis showed that unlike other high-risk regions, the Kashmiri population has a different promoter hypermethylation profile of both P16 and MGMT genes, with frequent and significant promoter hypermethylation of both in CRC. The frequency of promoter hypermethylation of both genes was significantly higher in males and was insignificantly found to be higher in stage III/IV. The degree of P16 and MGMT promoter hypermethylation increased significantly with increasing severity of the lesion. We also found a significant correlation between P16 and MGMT promoter hypermethylation and loss of protein expression in CRC. A significant association was found between COMT polymorphism (homozygous variant) and P16 methylation status. Similar results were also found for MGMT hypermethylated cases.


Assuntos
Biomarcadores Tumorais/genética , Catecol O-Metiltransferase/genética , Neoplasias Colorretais/genética , Inibidor p16 de Quinase Dependente de Ciclina/genética , Metilação de DNA , Metilases de Modificação do DNA/genética , Enzimas Reparadoras do DNA/genética , Polimorfismo Genético , Proteínas Supressoras de Tumor/genética , Biomarcadores Tumorais/metabolismo , Estudos de Casos e Controles , Catecol O-Metiltransferase/metabolismo , Neoplasias Colorretais/metabolismo , Neoplasias Colorretais/patologia , Inibidor p16 de Quinase Dependente de Ciclina/metabolismo , Metilases de Modificação do DNA/metabolismo , Enzimas Reparadoras do DNA/metabolismo , Regulação para Baixo , Feminino , Seguimentos , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , Prognóstico , Regiões Promotoras Genéticas , Proteínas Supressoras de Tumor/metabolismo
11.
Can J Diabetes ; 42(3): 251-256, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28739347

RESUMO

OBJECTIVES: Approx 1 billion people across various ethnic and age groups have vitamin D deficiency. The high prevalence of such a deficiency is an imperative public health issue because hypovitaminosis D is an autonomous risk factor for mortality in the general population. Beyond bone integrity and calcium homeostasis, it is involved in numerous physiologic and pathologic processes. The role of vitamin D in the pathogenesis and prevention of type 2 diabetes mellitus has sparked universal interest. METHODS: This hospital-based case-control study was designed to study the association between 25-hydroxy vitamin D (25[OH]D) levels and the vitamin D receptor (VDR) gene polymorphism with diabetes and to evaluate their roles as risk factors for diabetes. 100 cases and controls were taken. 25(OH)D levels were analyzed by the chemilumenescence method using a Siemens ADVIA Centaur analyzer. Genomic DNA was extracted and Taq-1 and Bsm-1 genotyping in the VDR gene was done by using the polymerase chain reaction followed by restriction fragment length polymorphism (PCR-RFLP). RESULTS: 25(OH)D levels of patients with diabetes were significantly lower than those of controls (19.26±0.95 ng/mL vs. 25.49±1.02 ng/mL; p=0.001). 25(OH)D levels were found to be inversely associated with glycated hemoglobin percentages in cases (r2=0.74). The results suggested that the single nucleotide polymorphisms Taq-1 t(T) allele and b (G allele) in Bsm-1 might be a susceptibility allele for diabetes in the Kashmiri population. CONCLUSIONS: VDR gene polymorphisms appear to be an important genetic determinant in the progression of diabetes. Considering the important predisposition risk factor, we observed that Taq-1 and Bsm-1 were strongly associated with diabetes in northern Indians. But requires further study as a probable genetic risk marker for diabetes.


Assuntos
Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/genética , Polimorfismo de Nucleotídeo Único/genética , Receptores de Calcitriol/genética , Adulto , Estudos de Casos e Controles , Feminino , Predisposição Genética para Doença , Humanos , Índia/epidemiologia , Lipídeos/sangue , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Vitamina D/análogos & derivados , Vitamina D/sangue
12.
RSC Adv ; 8(39): 21985-21992, 2018 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-35541749

RESUMO

The microbial transformation of anabolic androgenic steroid mestanolone (1) with Macrophomina phaseolina and Cunninghamella blakesleeana has afforded seven metabolites. The structures of these metabolites were characterized as 17ß-hydroxy-17α-methyl-5α-androsta-1-ene-3,11-dione (2), 14α,17ß-dihydroxy-17α-methyl-5α-androstan-3,11-dione (3), 17ß-hydroxy-17α-methyl-5α-androstan-1,14-diene-3,11-dione (4), 17ß-hydroxy-17α-methyl-5α-androstan-3,11-dione (5), 11ß,17ß-dihydroxy-17α-methyl-5α-androstan-1-ene-3-one (6), 9α,11ß,17ß-trihydroxy-17α-methyl-5α-androstan-3-one (7), and 1ß,11α,17ß-trihydroxy-17α-methyl-5α-androstan-3-one (8). All the metabolites, except 5 and 6, were identified as new compounds. Substrate 1 (IC50 = 27.6 ± 1.1 µM), and its metabolites 2 (IC50 = 19.2 ± 2.9 µM) and 6 (IC50 = 12.8 ± 0.6 µM) exhibited moderate cytotoxicity against the HeLa cancer cell line (human cervical carcinoma). All metabolites were noncytotoxic to 3T3 (mouse fibroblast) and H460 (human lung carcinoma) cell lines. The metabolites were also evaluated for immunomodulatory activity, and all were found to be inactive.

13.
Gynecol Endocrinol ; 33(1): 75-78, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27705028

RESUMO

Type 2 diabetes mellitus (T2DM) is a consequence of complex interactions among multiple genetic variants and environmental risk factors. This complex disorder is also characterized by changes in various adipokines. In this study, our objective was to estimate the levels of adiponectin, leptin, and resistin (ALR) in T2DM patients, besides studying the effect of various drugs on their levels. Study participants included 400 diabetic and 300 normal patients from the Department of Endocrinology and Department of Biochemistry, Govt Medical College Srinagar. Subjects were categorized under various groups, i.e., Group 1 (metformin treated) and Group 2 (glimepiride treated), and cases were also categorized as obese with T2DM (Group A), obese without T2DM (Group B), and T2DM only (Group C). The serum ALR levels were estimated by ELISA (Alere), and biochemical parameters were also evaluated before and after treatment. Adiponectin levels were found to be significantly lower in T2DM cases as compared to controls (12 ± 5.5 versus 22.5 ± 7.9 µg/ml), while leptin and resistin levels were found to be significantly higher than controls (14.3 ± 7.4 versus 7.36 ± 3.73 ng/ml) (13.4 ± 1.56 versus 7.236 ± 2.129 pg/ml). Taking the effect of drugs into consideration, the effect on adiponectin and resistin levels was found to be highly significant in Group 2 before and after treatment (11 ± 5 versus 19.2 ± 4.5 µg/ml) (13.6 ± 2.5 versus 7.3 ± 2.9 pg/ml), while more effect was observed in leptin among Group 1 (metformin)-treated cases (27 ± 15 ng/ml versus 15 ± 15 ng/ml). Further the adiponectin levels were found to be significantly lower in Group B, while leptin and resistin levels were found to be significantly higher among obese cases when compared to T2DM cases only. Glimepiride also shows more effect on FBG, HbA1c% levels, while metformin shows more effect on Lipid profile levels. From the study, it can be concluded that ALR levels are affected by use of antidiabetic drugs among which glimepiride shows more effect on adiponectin and resistin levels, while leptin gets affected more by metformin. It can also be proposed that ALR levels are not affected by diabetes only, suggesting that their alterations in T2DM may be due to obesity as we observed more ALR changes in obese cases when compared to T2DM cases, and so there might be an important link between adiposity and insulin resistance.


Assuntos
Adiponectina/sangue , Diabetes Mellitus Tipo 2/sangue , Hipoglicemiantes/farmacologia , Leptina/sangue , Síndrome Metabólica/sangue , Resistina/sangue , Adulto , Diabetes Mellitus Tipo 2/tratamento farmacológico , Feminino , Humanos , Masculino , Síndrome Metabólica/tratamento farmacológico , Metformina/farmacologia , Pessoa de Meia-Idade , Compostos de Sulfonilureia/farmacologia
14.
Bioorg Med Chem ; 24(16): 3387-95, 2016 08 15.
Artigo em Inglês | MEDLINE | ID: mdl-27374882

RESUMO

A library of benzimidazole derivatives 1-20 were synthesized, and studied for their α-chymotrypsin (α-CT) inhibitory activity in vitro. Kinetics and molecular docking studies were performed to identify the type of inhibition. Compound 1 was found to be a good inhibitor of α-chymotrypsin enzyme (IC50=14.8±0.1µM, Ki=16.4µM), when compared with standard chymostatin (IC50=5.7±0.13µM). Compounds 2-8, 15, 17, and 18 showed significant inhibitory activities. All the inhibitors were found to be competitive inhibitors, except compound 17, which was a mixed type inhibitor. The substituents (R) in para and ortho positions of phenyl ring B, apparently played a key role in the inhibitory potential of the series. Compounds 1-20 were also studied for their cytotoxicity profile by using 3T3 mouse fibroblast cells and compounds 3, 5, 6, 8, 12-14, 16, 17, 19, and 20 were found to be cytotoxic. Molecular docking was performed on the most active members of the series in comparison to the standard compound, chymostatin, to identify the most likely binding modes. The compounds reported here can serve as templates for further studies for new inhibitors of α-chymotrypsin and other chymotrypsin-like serine proteases enzymes.


Assuntos
Benzimidazóis/farmacologia , Quimotripsina/antagonistas & inibidores , Inibidores Enzimáticos/farmacologia , Células 3T3 , Animais , Benzimidazóis/química , Espectroscopia de Ressonância Magnética Nuclear de Carbono-13 , Inibidores Enzimáticos/química , Técnicas In Vitro , Cinética , Camundongos , Simulação de Acoplamento Molecular , Espectroscopia de Prótons por Ressonância Magnética , Espectrometria de Massas por Ionização por Electrospray
15.
Adv Biomed Res ; 5: 109, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27376048

RESUMO

BACKGROUND: Psoriasis is a chronic hyperproliferative inflammatory disease of the skin, genetic predisposition to which is well-established. The late cornified envelope genes LCE3B and LCE3C are involved in maintaining the integrity of skin barrier especially following skin barrier disruption. The deletion of these genes would lead to an impaired epidermal response following damage to the skin barrier thus predisposing to psoriatic lesions. This study aimed to evaluate the common deletion of late cornified envelope genes (LCE 3B/3C) in psoriasis patients of Kashmiri ethnic population of North India. MATERIALS AND METHODS: It was a hospital-based, case-control study which included 100 psoriasis cases and an equal number of controls. Blood samples were obtained, and DNA was extracted from all the samples by a kit-based method. To determine the LCE3C_LCE3B-del genotype, a three-primer polymerase chain reaction assay was performed. RESULTS: The genotype for the common LCE3C_LCE3B deletion in 100 psoriasis patients and 100 controls was determined. Among the cases, 17 cases were homozygous for insertion genotype (I/I), 40 cases were heterozygous for insertion/deletion genotype (I/D) and 43 cases were homozygous for deletion genotype (D/D), compared to controls where 20 cases were homozygous for insertion genotype (I/I), 45 cases were heterozygous for insertion/deletion genotype (I/D), and 35 cases were homozygous for deletion genotype (D/D). The del/del frequency was higher among psoriatic patients compared to controls (43% vs. 35%) although the difference was not statistically significant (P = 0.507). CONCLUSION: We hereby infer that LCE3C_LCE3B deletion does not appear to be associated with the risk of psoriasis in our population.

16.
Eur J Cancer Prev ; 24(3): 167-75, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25642794

RESUMO

DNA repair plays a critical role in protecting the genome of the cell from the insults of cancer-causing agents. Genetic polymorphisms in DNA repair genes may influence individual variation in DNA repair capacity, which may be associated with the risk of developing cancer. Inherited polymorphisms of DNA repair genes may contribute to variations in DNA repair capacity and genetic susceptibility to different cancers. The X-ray repair complementing defective repair in Chinese hamster cells 3 (XRCC3) gene is a member of the RAD51 gene family. It encodes an important protein that functions in the homologous recombination repair of a DNA double-strand break. For gastric cancer, the importance of mutations in mismatch repair genes has been well documented, but less is known about other DNA repair pathways in gastric carcinogenesis. In this study, we have focused on the XRCC3 gene, involved in homologous recombinational repair. The Kashmir valley has an increased incidence of gastric cancer and its etiology has not been understood fully as yet. As the Kashmiri population is ethnically and demographically different from that in other parts of the world, the aim of this study was to determine whether a single nucleotide polymorphism of the XRCC3 gene (Thr241Met) of exon 7 can influence the risk of gastric cancer in the population. As many as 80 histopathologically confirmed gastric cancer cases and 70 healthy controls, age, sex, and ethnicity matched for known genotypes of XRCC3 exon 7 were studied. We genotyped for this variant using PCR-restriction fragment length polymorphisms. The XRCC3 genotype and allele frequencies were not significantly different between cases and controls (P=0.92 for the genotype; P=0.72 for the allele). The XRCC3 241Met allele frequency (6.6%) was significantly lower in healthy Kashmiri controls than reported previously in healthy US White controls (38.9%). Compared with the XRCC3 241Thr/Thr genotype, the variant XRCC3 241Thr/Met and Met/Met genotypes were not associated with an increased risk of gastric cancer (adjusted odds ratio=1.19; 95% confidence interval=0.44-3.18). These findings suggest that polymorphisms of XRCC3 Thr241Met may not play a role in the etiology of gastric cancer. Further studies with a larger number of participants and simultaneous measurement of different polymorphisms in DNA repair genes in the same pathway are needed.


Assuntos
Proteínas de Ligação a DNA/genética , Predisposição Genética para Doença/etnologia , Predisposição Genética para Doença/genética , Polimorfismo de Nucleotídeo Único/genética , Neoplasias Gástricas/etnologia , Neoplasias Gástricas/genética , Adulto , Estudos de Casos e Controles , Feminino , Humanos , Índia/etnologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Neoplasias Gástricas/diagnóstico
17.
Indian J Endocrinol Metab ; 17(2): 276-80, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23776902

RESUMO

BACKGROUND: Iodine-rich diet is necessary for proper thyroid gland function. Subclinical hypothyroidism (SCH) is associated with serious complications. Substantial numbers of patients have risk of SCH getting converted into primary hypothyroidism. OBJECTIVES: The objectives of the present study are to survey dietary iodine intake pattern in ethnic population of Kashmir and to study the prevalence of SCH. MATERIALS AND METHODS: A retrospective, cross-sectional referral hospital study was conducted. Sample size comprised of 2550 patients who were referred to Department of Biochemistry, Government Medical college, Srinagar diagnostic laboratory from OPD and IPD of associated SMHS hospital. Assessment of thyroid function over a period of one year from March 2010 to March 2011 in the serum has been performed by electro-chemiluminescence immunoassay method on ECLIA 2010 fully automatic analyzer. Interview cum questionnaire methods were used to record the patient history and dietary iodine intake pattern. Iodine status of these patients was assessed by measuring urinary iodine excretion. RESULTS: Total patients were 2550 comprising of 44.6% males and 56.4% females. Subjects with elevated and normal thyroid stimulating hormone (TSH) levels in the serum were 30.51 and 69.4% respectively. About 550 patients (21.56%) had subclinical hypothyroidism which includes both males and females. Prevalence of SCH was more in females (81.8%) than in males (18.2%). Most of the patients presenting with SCH were in the age group of 20-65 years. CONCLUSION: The percentage of SCH amongst the study sample patients was 21.56%, which is much higher as compared to other parts of the world. The highest percentage of SCH was found in females (81.8%) as compared to males (18.2%). On the basis of the present study, we suggest that routine screening of selected populations, especially women between 20 and 65 years of age, may be advocated. Further community level awareness programs need to be organized wherein people in mountainous valley of Kashmir are motivated to take salt in iodized form and diet rich in iodine to ensure proper thyroid gland functioning.

18.
Acta Crystallogr Sect E Struct Rep Online ; 68(Pt 8): o2349, 2012 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-22904817

RESUMO

In the title compound, C(20)H(22)N(2)S(2), the five-membered thia-zole ring of the 2-methyl-2,3-dihydro-1,3-benzothia-zole unit has an envelope conformation. The dihedral angle between the planar [maximum deviation of 0.014 (1) Šfor the S atom] benzothia-zole ring system and the benzene ring is 78.37 (12)°. Two intra-molecular C-H⋯S hydrogen bonds are observed, forming rings of graph-set motif S(6). In the crystal, the molecules are consolidated in pairs through N-H⋯N hydrogen bonds and are arranged parallel to the b axis.

19.
Acta Crystallogr Sect E Struct Rep Online ; 68(Pt 7): o2090, 2012 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-22798770

RESUMO

In the title compound, C(9)H(12)N(2)O(7)S(2), the nitro substituent is slightly twisted from the benzene ring [dihedral angle = 14.69 (10)°]. The mol-ecular geometry is stabilized by intra-molecular C-H⋯O hydrogen bonds, forming S(6) ring motifs. In the crystal, molecules are linked by C-H⋯O hydrogen bonds into layers parallel to (10-2).

20.
Med J Islam Repub Iran ; 26(4): 172-8, 2012 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23482519

RESUMO

BACKGROUNDS: Thyroid hormones play an important physiological role in human metabolism. Erythrocyte abnormalities are frequently associated with thyroid disorder. However, they are rarely investigated and related to the subclinical and primary hypothyroidism in Kashmiri Patients. In this study an attempt was made to study hematological parameters in untreated and treated subclinical hypothyroidism and primary hypothyroidism patients. METHODS: This retrospective study included 600 subjects, among which were untreated subclinical hypothyroid (n=110), treated subclinical hypothyroid (n=110), untreated primary hypothyroid (n=100), treated primary hypothyroid (n=100) and euthyroid (n=180). This study was carried out at Department of Biochemistry, Government Medical College Srinagar. The hematological parameters and thyroid profile of the subjects were assessed by the Sysmex (Italy) and ECLIA (Germany) 2010 automatic analyzer. Mean, standard deviation (SD), analysis of variance (Two-way ANOVA), and multiple comparisons were used to report our results, with p<0.05 or p<0.01 considered as statistically significant. RESULTS: In this study group we compared the hematological parameters in these groups, untreated subclinical hypothyroid, treated subclinical hypothyroid, untreated primary hypothyroid, treated primary hypothyroid and euthyroid. We found that hematological parameters like Hb, RBC, MCV, HCT, RDW,RBC% were significantly increased in untreated subclinical hypothyroidism and untreated primary hypothyroidsm, with the p value being less than 0.05 whereas, in treated SCH & Pr. Hypothyroid, results were insignificant. The results reported in these groups as mean±SD, were statistically tested by ANOVA and multiple comparison tests. In untreated subclinical hypothyroid the values were: Hb (10.83±1.33 g/dl), RBC (4.21±0.66 10(6)/µl), MCV (84.56±6.84 fL), HCT (38.5±2.2%), RDW (17.91±2.37 fL), RBC% (84.36±13.2%) and in untreated primary hypothyroid, Hb (10.73±0.86 g/dl), RBC (4.63±0.51 10(6)/µl), MCV (83.34±6.92 fL), HCT (38.6±2.6%), RDW (14.93±5.47 fL), RBC% (92.63±10.30%) suggesting that these patients were at risk of anemia and other erythrocyte abnormalities. MCV is an inexpensive approach to study the types of anemia and explore related information like production, destruction, loss and morphological changes of RBC'S. CONCLUSION: The thyroid dysfunction is frequently associated with anemia in subclinical hypothyroidism and primary hypothyroidism. Subclinical hypothyroidism (SCH) is associated with serious complications. Substantial numbers of patients with the risk of SCH could be getting converted into primary hypothyroidism. Such conditions should be identified and corrected. On the other hand, their presence could move to a thyroid dysfunction, allowing its early management.

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