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1.
BMC Public Health ; 20(1): 231, 2020 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-32059660

RESUMO

BACKGROUND: In 2016, India reported 709 acute diarrheal disease (ADD) outbreaks (> 25% of all outbreaks). Tribal populations are at higher risk with 27% not having accessibility to safe drinking water and 75% households not having toilets. On June 26, 2017 Pedda-Gujjul-Thanda, a tribal village reported an acute diarrheal disease (ADD) outbreak. We investigated to describe the epidemiology, identify risk factors, and provide evidence-based recommendations. METHODS: We defined a case as ≥3 loose stools within 24 h in Pedda-Gujjul-Thanda residents from June 24-30, 2017. We identified cases by reviewing hospital records and house-to-house survey. We conducted a retrospective cohort study and collected stool samples for culture. We assessed drinking water supply and sanitation practices and tested water samples for faecal-contamination. RESULTS: We identified 191 cases (65% females) with median age 36 years (range 4-80 years) and no deaths. The attack-rate (AR) was 37% (191/512). Downhill colonies (located on slope of hilly terrains of the village) reported higher ARs (56%[136/243], p < 0.001) than others (20%[55/269]). Symptoms included diarrhea (100%), fever (17%), vomiting (16%) and abdominal pain (13%). Drinking water from five shallow bore-wells located in downhill colonies was significantly associated with illness (RR = 4.6, 95%CI = 3.4-6.1 and population attributable fraction 61%). In multi-variate analysis, drinking water from the shallow bore-wells located in downhill colonies (aOR = 7.9, [95% CI =4.7-13.2]), illiteracy (aOR =6, [95% CI = 3.6-10.1]), good hand-washing practice (aOR = 0.4, [95%CI = 0.2-0.7]) and household water treatment (aOR = 0.3, [95%CI = 0.2-0.5]) were significantly associated with illness. Two stool cultures were negative for Vibrio cholerae. Heavy rainfall was reported from June 22-24. Five of six water samples collected from shallow bore-wells located in downhill colonies were positive for faecal contamination. CONCLUSION: An ADD outbreak with high attack rate in a remote tribal village was associated with drinking water from shallow downhill bore-wells, likely contaminated via runoff from open defecation areas after heavy rains. Based on our recommendations, immediate public health actions including repair of leakages at contaminated water sources and alternative supply of purified canned drinking water to families, and as long-term public health measures construction of house-hold latrines and piped-water supply initiated.


Assuntos
Diarreia/epidemiologia , Surtos de Doenças , Água Potável/microbiologia , Poços de Água , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
2.
Indian J Public Health ; 64(Supplement): S142-S146, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32496246

RESUMO

BACKGROUND: As of May 4, 2020, India has reported 42,836 confirmed cases and 1,389 deaths from COVID-19. India's multipronged response included nonpharmacological interventions (NPIs) like intensive case-based surveillance, expanding testing capacity, social distancing, health promotion, and progressive travel restrictions leading to a complete halt of international and domestic movements (lockdown). OBJECTIVES: We studied the impact of NPI on transmission dynamics of COVID-19 epidemic in India and estimated the minimum level of herd immunity required to halt it. METHODS: We plotted time distribution, estimated basic (R0) and time-dependent effective (Rt) reproduction numbers using software R, and calculated doubling time, the growth rate for confirmed cases from January 30 to May 4, 2020. Herd immunity was estimated using the latest Rtvalue. RESULTS: Time distribution showed a propagated epidemic with subexponential growth. Average growth rate, 21% in the beginning, reduced to 6% after an extended lockdown (May 3). Based on early transmission dynamics, R0was 2.38 (95% confidence interval [CI] =1.79-3.07). Early, unmitigated Rt= 2.51 (95% CI = 2.05-3.14) (March 15) reduced to 1.28 (95% CI = 1.22-1.32) and was 1.83 (95% CI = 1.71-1.93) at the end of lockdown Phase 1 (April 14) and 2 (May 3), respectively. Similarly, average early doubling time (4.3 days) (standard deviation [SD] = 1.86) increased to 5.4 days (SD = 1.03) and 10.9 days (SD = 2.19). Estimated minimum 621 million recoveries are required to halt COVID-19 spread if Rtremains below 2. CONCLUSION: India's early response, especially stringent lockdown, has slowed COVID-19 epidemic. Increased testing, intensive case-based surveillance and containment efforts, modulated movement restrictions while protecting the vulnerable population, and continuous monitoring of transmission dynamics should be a way forward in the absence of effective treatment, vaccine, and undetermined postinfection immunity.


Assuntos
Controle de Doenças Transmissíveis/organização & administração , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/prevenção & controle , Pandemias/prevenção & controle , Pneumonia Viral/epidemiologia , Pneumonia Viral/prevenção & controle , Número Básico de Reprodução , Betacoronavirus , COVID-19 , Controle de Doenças Transmissíveis/normas , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/transmissão , Promoção da Saúde/métodos , Humanos , Índia/epidemiologia , Pneumonia Viral/diagnóstico , Pneumonia Viral/transmissão , Vigilância em Saúde Pública/métodos , SARS-CoV-2 , Fatores de Tempo , Viagem
3.
Indian J Public Health ; 64(4): 333-338, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33318381

RESUMO

BACKGROUND: Soil-transmitted helminth (STH) infections have adverse physical and mental effect, especially in preschool (3-6 years) and school-age children (6-14 years). They are associated with socio-behavioral factors of poverty and poor personal and community hygiene. OBJECTIVES: To determine the prevalence, intensity, and the type of helminths infection harbored by the school age children (6-14 years) and to examine the relationship between STH infection and their potential risk factors and associated variables. METHODS: This cross-sectional study was conducted from January to December 2016 among 250 school age children residing in an urban resettlement colony of East Delhi. Data were collected using a semistructured interview schedule. Stool sample was tested using the Kato Katz technique. Data were analyzed in SPSS software version 16, and multivariable regression analysis was done to calculate the odds of various risk factors. RESULTS: The prevalence of STH was found to be 54.8%, and majority (85.3%) of Ascaris and all Trichuris infections were of light intensity. Multivariable logistic regression analysis confirmed that children having poor handwashing behavior in school, irregular handwashing before eating, having pica, and lack of de-worming had higher odds of having STH infection. CONCLUSION: The prevalence of STH in the study area is substantially high, and the findings suggest that besides mass de-worming strategy, behavior change, and improvement in hygiene are required to control STH.


Assuntos
Helmintos , Solo , Adolescente , Animais , Criança , Pré-Escolar , Estudos Transversais , Humanos , Índia/epidemiologia , Prevalência , Fatores de Risco , Instituições Acadêmicas
4.
Anim Biotechnol ; 26(1): 58-64, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25153457

RESUMO

Infectious Bursal Disease (IBD) is major threat to poultry industry. It causes severe immunosuppression and mortality in chicken generally at 3 to 6 weeks of age. RNA intereference (RNAi) emerges as a potent gene regulatory tool in last few years. The present study was conducted to evaluate the efficiency of RNAi to inhibit the IBD virus (IDBV) replication in-vitro. VP2 gene of virus encodes protein involved in capsid formation, cell entry and induction of protective immune responses against it. Thus, VP2 gene of IBDV is the candidate target for the molecular techniques applied for IBDV detection and inhibition assay. In this study, IBDV was isolated from field cases and confirmed by RT-PCR. The virus was then adapted on chicken embryo fibroblast cells (CEF) in which it showed severe cytopathic effects (CPE). The short hairpin RNA (shRNAs) constructs homologous to the VP2 gene were designed and one, having maximum score and fulfilling maximum Reynolds criteria, was selected for evaluation of effective inhibition. Selected shRNA construct (i.e., VP2-shRNA) was observed to be the most effective for inhibiting VP2 gene expression. Real time PCR analysis was performed to measure the relative expression of VP2 gene in different experimental groups. The VP2 gene was less expressed in virus infected cells co-transfected with VP2-shRNA as compared to mock transfected cells and IBDV+ cells (control) at dose 1.6 µ g. The result showed ∼95% efficient down regulation of VP2 gene mRNA in VP2-shRNA treated cells. These findings suggested that designed shRNA construct achieved high level of inhibition of VP2 gene expression in-vitro.


Assuntos
Infecções por Birnaviridae/veterinária , Vírus da Doença Infecciosa da Bursa/efeitos dos fármacos , Doenças das Aves Domésticas/terapia , Doenças das Aves Domésticas/virologia , RNA Interferente Pequeno/farmacologia , Proteínas Estruturais Virais/genética , Animais , Infecções por Birnaviridae/virologia , Células Cultivadas , Embrião de Galinha , Fibroblastos/patologia , Fibroblastos/virologia , Técnicas de Silenciamento de Genes , Doenças das Aves Domésticas/genética , RNA Interferente Pequeno/genética , Reação em Cadeia da Polimerase em Tempo Real , Proteínas Estruturais Virais/metabolismo
5.
Malays J Med Sci ; 21(2): 68-70, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24876810

RESUMO

Ileocaecal intussusception is a common cause of acute intestinal obstruction presenting as a surgical emergency. We report a case of amoebic colitis in a 62 years old man complaining of acute colicky pain in the right iliac fossa, associated with a three-day history of constipation but no other gastrointestinal tract symptoms. There was rebound tenderness on palpation of the right iliac fossa. Ultrasound scans revealed free fluid and a loop within a loop image in this area. At laparotomy, we discovered an Ileocaecal intussusception associated with a gangrenous caecum. A right hemicolectomy was performed with satisfactory outcome. The final diagnosis of amoebic colitis was obtained post-operatively using serology and pathology. This rare aetiology must be considered in patients with acute pain in the right iliac fossa in the tropical regions. Tropical surgeons must be aware of this scenario before they label a case of intussusception as idiopathic. The identification and treatment of invasive amoebic infection may reduce the recurrence of idiopathic intussusception.

6.
Drug Deliv Transl Res ; 13(1): 135-163, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-35727533

RESUMO

Since the beginning of pharmaceutical research, drug delivery methods have been an integral part of it. Polymeric micelles (PMs) have emerged as multifunctional nanoparticles in the current technological era of nanocarriers, and they have shown promise in a range of scientific fields. They can alter the release profile of integrated pharmacological substances and concentrate them in the target zone due to their improved permeability and retention, making them more suitable for poorly soluble medicines. With their ability to deliver poorly soluble chemotherapeutic drugs, PMs have garnered considerable interest in cancer. As a result of their remarkable biocompatibility, improved permeability, and minimal toxicity to healthy cells, while also their capacity to solubilize a wide range of drugs in their micellar core, PMs are expected to be a successful treatment option for cancer therapy in the future. Their nano-size enables them to accumulate in the tumor microenvironment (TME) via the enhanced permeability and retention (EPR) effect. In this review, our major aim is to focus primarily on the stellar applications of PMs in the field of cancer therapeutics along with its mechanism of action and its latest advancements in drug and gene delivery (DNA/siRNA) for cancer, using various therapeutic strategies such as crossing blood-brain barrier, gene therapy, photothermal therapy (PTT), and immunotherapy. Furthermore, PMs can be employed as "smart drug carriers," allowing them to target specific cancer sites using a variety of stimuli (endogenous and exogenous), which improve the specificity and efficacy of micelle-based targeted drug delivery. All the many types of stimulants, as well as how the complex of PM and various anticancer drugs react to it, and their pharmacodynamics are also reviewed here. In conclusion, commercializing engineered micelle nanoparticles (MNPs) for application in therapy and imaging can be considered as a potential approach to improve the therapeutic index of anticancer drugs. Furthermore, PM has stimulated intense interest in research and clinical practice, and in light of this, we have also highlighted a few PMs that have previously been approved for therapeutic use, while the majority are still being studied in clinical trials for various cancer therapies.


Assuntos
Antineoplásicos , Neoplasias , Humanos , Micelas , Sistemas de Liberação de Medicamentos , Neoplasias/tratamento farmacológico , Antineoplásicos/uso terapêutico , Microambiente Tumoral
7.
Mutat Res ; 741(1-2): 101-8, 2012 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-22108250

RESUMO

Previous studies have revealed that organophosphate pesticides (OPs) are primarily metabolized by xenobiotic metabolizing enzymes (XMEs). Very few studies have explored genetic polymorphisms of XMEs and their association with DNA damage in pesticides-exposed workers. Present study was designed to determine the influence of CYP2C9, GSTM1, GSTT1 and NAT2 genetic polymorphisms on DNA damage in workers occupationally exposed to OPs. We examined 268 subjects including 134 workers occupationally exposed to OPs and an equal number of normal healthy controls. The DNA damage was evaluated using alkaline comet assay and genotyping was done using individual polymerase chain reaction (PCR) or polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Acetylcholinesterase and paraoxonase activity were found to be significantly lowered in workers as compared to control subjects which were analyzed as biomarkers of toxicity due to OPs exposure (p<0.001). Workers showed significantly higher DNA tail moment (TM) compared to control subjects (14.32±2.17 vs. 6.24±1.37 tail % DNA, p<0.001). GSTM1 null genotype was found to influence DNA TM in workers (p<0.05). DNA TM was also found to be increased with concomitant presence of NAT2 slow acetylation and CYP2C9*3/*3 or GSTM1 null genotypes (p<0.05). DNA TM was found increased in NAT2 slow acetylators with mild and heavy smoking habits in control subjects and workers, respectively (p<0.05). The results of this study suggest that GSTM1 null genotypes, and an association of NAT2 slow acetylation genotypes with CYP2C9*3/*3 or GSTM1 null genotypes may modulate DNA damage in workers occupationally exposed to OPs.


Assuntos
Hidrocarboneto de Aril Hidroxilases/genética , Arilamina N-Acetiltransferase/genética , Dano ao DNA , Glutationa Transferase/genética , Exposição Ocupacional , Compostos Organofosforados/toxicidade , Praguicidas/toxicidade , Polimorfismo Genético , Adulto , Ensaio Cometa , Citocromo P-450 CYP2C9 , Humanos , Masculino , Pessoa de Meia-Idade
8.
Anim Biotechnol ; 23(3): 174-83, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22870872

RESUMO

RNAi is an evolutionary conserved, highly efficient, and cost effective technique of gene silencing. It holds considerable promise and success has been achieved both in vitro and in vivo experiments. However, it is not devoid of undesirable side effects as dsRNA can trigger the immune response and can also cause non-specific off-target gene silencing. In the present study, silencing of myostatin gene, a negative regulator of myogenesis, was evaluated in caprine fetal fibroblasts using three different shRNA constructs. Out of these three constructs, two constructs sh1 and sh2 showed, 72% and 50% reduction (p<0.05) of myostatin mRNA, respectively. Efficient suppression (42-86%) of MSTN gene (p<0.05) was achieved even by reducing the concentration of shRNA constructs. The induction of classical interferon stimulated gene (Oligoandenylate Synthetase-1, OAS-1) was studied to analyze the immune response against shRNAs. Notably, a reduction in the potency of shRNAs to induce interferon response was observed at lower concentration for OAS1 gene. The results obtained in the study would be helpful in the abrogation of the bystander effects of RNAi for long term stable expression of anti-MSTN expression constructs in the muscle.


Assuntos
Cabras/genética , Cabras/imunologia , Interferons/biossíntese , Miostatina/antagonistas & inibidores , Miostatina/genética , 2',5'-Oligoadenilato Sintetase/genética , Animais , Sequência de Bases , Biotecnologia , Células Cultivadas , Primers do DNA/genética , Feto/imunologia , Fibroblastos/imunologia , Técnicas de Silenciamento de Genes , Cabras/crescimento & desenvolvimento , Desenvolvimento Muscular/genética , Desenvolvimento Muscular/imunologia , Interferência de RNA , RNA Interferente Pequeno/genética , Reação em Cadeia da Polimerase em Tempo Real
9.
Acta Vet Hung ; 60(1): 165-74, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22366141

RESUMO

In order to detect infectious bursal disease virus (IBDV), bursal tissue was collected from 10 IBD-suspected birds from a 30-day-old, IBDV-vaccinated commercial broiler chicken flock of 2000 birds exhibiting clinical signs suggestive of infectious bursal disease (IBD). The presence of IBDV was confirmed by partial amplification of the VP2 gene by reverse transcription and polymerase chain reaction. Isolates were identified as very virulent strains of IBDV (vvIBDV) by nucleotide sequence analysis. The comparison of the VP2 nucleotide sequences among the isolates revealed the presence of single-nucleotide polymorphisms in the VP2 gene of IBDV in the same flock. The comparative analysis indicated that these viruses were genetically close to the vvIBDVs previously detected in India. Our analysis provided information about the existence of vvIBDV in Central India.


Assuntos
Infecções por Birnaviridae/veterinária , Galinhas , Surtos de Doenças/veterinária , Vírus da Doença Infecciosa da Bursa/patogenicidade , Doenças das Aves Domésticas/virologia , Animais , Sequência de Bases , Infecções por Birnaviridae/epidemiologia , Infecções por Birnaviridae/virologia , DNA Complementar/genética , Índia/epidemiologia , Vírus da Doença Infecciosa da Bursa/genética , Dados de Sequência Molecular , Doenças das Aves Domésticas/epidemiologia , RNA Viral/genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa/veterinária , Proteínas Estruturais Virais/genética , Virulência
10.
Indian J Otolaryngol Head Neck Surg ; 74(Suppl 3): 6285-6291, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36742765

RESUMO

Haemostasis during any surgical procedure is fundamental for attaining a positive patient outcome. Safe thyroid surgery requires meticulous attention for careful control of bleeding and safe guarding important structures like recurrent laryngeal nerve. Many methods such as ligation and suturing, electro ligation sealing, coagulation, and ultrasonic coagulation have been put to use for achieving haemostasis. The objective of this systemic review was to compare and review the surgical outcomes between harmonic (ultrasonic) scalpel and conventional ligature techniques in performing thyroid surgery. The systematic review was performed in accordance with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement and checklist with a total of 11 studies selected for qualitative analysis. The statistical software Review Manager 5.4.1 provided by the Cochrane Collaboration was used for performing the analysis on the two groups. It was concluded that the use of harmonic scalpel for thyroid surgery is useful for reducing operative time, postoperative pain, drainage volume and transient hypocalcemia, hence can be a reliable and a safe tool compared to conventional techniques often used for surgery.

11.
Int J Low Extrem Wounds ; : 15347346221076625, 2022 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-35275009

RESUMO

Diabetic foot ulcer (DFU), if untreated, accounts for lower-limb amputations affecting patients' quality-of-life. Diperoxochloric acid (DPOCL) is known to heal DFU by its antibacterial and fibroblast stimulating activity. This was a phase 3, multicentre, randomized, double-blind, active-controlled, parallel-group study conducted to evaluate the efficacy and safety of topic solution of DPOCL compared with isotonic sodium chloride solution (ISCL). Adult patients with type 1 or 2 diabetes with random blood glucose levels of <250 mg/dL, with ≤ than three full-thickness foot ulcers were enrolled. Primary efficacy endpoint was complete wound closure and secondary was wound surface area. Adverse events were analyzed as safety endpoint. Of 311 enrolled patients, 289 were randomized 1:1 to DPOCL (139) and ISCL (150) treatment (10-weeks [8-Visits]). Percentage of patients with complete wound closure at visit-8, were significantly higher (P = .0156) in DPOCL arm (76% [105/139]) compared to ISCL (62% [93/150]) arm. At end-of-study, mean wound surface area in DPOCL arm (0.639 cm2) was significantly lower (P = .0209) compared to ISCL (0.818 cm2) arm. One death was reported in control arm which was not considered as treatment-related. No important safety finding were observed. Results indicate that, DPOCL can be considered as effective and safe treatment option for DFU compared to ISCL, although future confirmatory studies are warranted.

12.
Plants (Basel) ; 11(23)2022 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-36501251

RESUMO

Nutritionally rich cucumber seeds remain in demand in the agricultural, health and cosmetic sectors as they are essential for a successful crop stand establishment and seed-based products. However, the production of cucumber seeds is impeded by source limitation and nutrient deficiency. The foliar application of micronutrients can supplement this deficiency and overcome the physiological setback. An experiment was undertaken to compare the impacts of the foliar application of Fe and Zn, as nanoparticles and fertilizers, on the yield and seed quality of cucumber under open and protected environments. A foliar spray of nano-ZnO (ZnNPs) and nano-Fe3O4 (FeNPs) at 100, 200 and 300 mg L-1, as well as ZnSO4 and FeSO4 as fertilizer (0.5%), was conducted at the vegetative stage and pre- and post-flowering stages. The NPs had a greater efficacy in an open field than in the protected (naturally ventilated poly house) environment. The application of both NPs increased seed yield (51.7-52.2%), total chlorophyll content (15.9-17.3%) and concentration of Zn and Fe in the fruit and the seed, by 2.0-58.5% and 5.0-30.5%, respectively. A significant increase in starch, soluble proteins, soluble sugars and oil content was observed in the seeds from the NP treated plants. NP treatment also enhanced the germination-related parameters, such as percent germination (16.8-17.0%), rate of germination (18.0-22.2%) and seedling vigor (59.8-72.6%). The biochemical characterization showed a significant improvement in the seed water uptake and the activity of hydrolytic enzymes (amylase and protease) in the germinating seed. The involvement of reactive oxygen species (superoxide anion and hydrogen peroxide) and antioxidant enzymes (Superoxide dismutase, Catalase and Peroxidase) in the germination process was indicated by an increase in their activities in the seeds from NP treated plants. Hence, the study proposes the potential benefit of the foliar application of 300 mg L-1 ZnNPs and 200 mg L-1 FeNPs at crucial stages of plant growth to improve the yield and seed quality in cucumbers.

13.
Toxicol Appl Pharmacol ; 252(2): 130-7, 2011 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-21291901

RESUMO

Human paraoxonase 1 (PON1) is a lipoprotein-associated enzyme involved in the detoxification of organophosphate pesticides (OPs) by hydrolyzing the bioactive oxons. Polymorphisms of the PON1 gene are responsible for variation in the expression and catalytic activity of PON1 enzyme. In the present study, we have determined (a) the prevalence of two common PON1 polymorphisms, (b) the activity of PON1 and acetylcholinesterase enzymes, and (c) the influence of PON1 genotypes and phenotypes variation on DNA damage in workers exposed to OPs. We examined 230 subjects including 115 workers exposed to OPs and an equal number of normal healthy controls. The results revealed that PON1 activity toward paraoxon (179.19±39.36 vs. 241.52±42.32nmol/min/ml in controls) and phenylacetate (112.74±17.37 vs. 134.28±25.49µmol/min/ml in controls) was significantly lower in workers than in control subjects (p<0.001). No significant difference was observed in the distribution of genotypes and allelic frequencies of PON1(192)QR (Gln/Arg) and PON1(55)LM (Leu/Met) in workers and control subjects (p>0.05). The PON1 activity toward paraoxonase was found to be significantly higher in the R/R (Arg/Arg) genotypes than Q/R (Gln/Arg) and lowest in Q/Q (Gln/Gln) genotypes in both workers and control subjects (p<0.001). For PON1(55)LM (Leu/Met), PON1 activity toward paraoxonase was observed to be higher in individuals with L/L (Leu/Leu) genotypes and lowest in individuals with M/M (Met/Met) genotypes in both groups (p<0.001). No influence of PON1 genotypes and phenotypes was seen on the activity of acetylcholinesterase and arylesterase. The DNA damage was observed to be significantly higher in workers than in control subjects (p<0.05). Further, the individuals who showed least paraoxonase activity i.e., those with (Q/Q [Gln/Gln] and M/M [Met/Met]) genotypes showed significantly higher DNA damage compared to other isoforms in workers exposed to OPs (p<0.05). The results indicate that the individuals with PON1 Q/Q and M/M genotypes are more susceptible toward genotoxicity. In conclusion, the study suggests wide variation in enzyme activities and DNA damage due to polymorphisms in PON1 gene, which might have an important role in the identification of individual risk factors in workers occupationally exposed to OPs.


Assuntos
Arildialquilfosfatase/genética , Dano ao DNA/efeitos dos fármacos , Exposição Ocupacional/efeitos adversos , Praguicidas/toxicidade , Polimorfismo Genético/genética , Adulto , Arildialquilfosfatase/sangue , Estudos Transversais , Dano ao DNA/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Compostos Organofosforados/sangue , Compostos Organofosforados/toxicidade , Praguicidas/sangue
14.
Toxicol Appl Pharmacol ; 257(1): 84-92, 2011 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-21907728

RESUMO

Organophosphate pesticides (OPs) are primarily metabolized by several xenobiotic metabolizing enzymes (XMEs). Very few studies have explored genetic polymorphisms of XMEs and their association with DNA damage in pesticide-exposed workers. The present study was designed to determine the role of genetic polymorphisms of CYP1A1, CYP3A5, CYP2C9, CYP2D6, and PON1 in the modulation of DNA damage in workers occupationally exposed to OPs. We examined 284 subjects including 150 workers occupationally exposed to OPs and 134 normal healthy controls. The DNA damage was evaluated using the alkaline comet assay and genotyping was done using PCR-RFLP. The results revealed that the PONase activity toward paraoxonase and AChE activity was found significantly lowered in workers as compared to control subjects (p<0.001). Workers showed significantly higher DNA damage compared to control subjects (14.37±2.15 vs. 6.24±1.37 tail% DNA, p<0.001). Further, the workers with CYP2D6*3PM and PON1 (QQ and MM) genotypes were found to have significantly higher DNA damage when compared to other genotypes (p<0.05). In addition, significant increase in DNA damage was also observed in workers with concomitant presence of certain CYP2D6 and PON1 (Q192R and L55M) genotypes which need further extensive studies. In conclusion, the results indicate that the PON1 and CYP2D6 genotypes can modulate DNA damage elicited by some OPs possibly through gene-environment interactions.


Assuntos
Hidrocarboneto de Aril Hidroxilases/genética , Arildialquilfosfatase/genética , Citocromo P-450 CYP1A1/genética , Citocromo P-450 CYP2D6/genética , Citocromo P-450 CYP3A/genética , Dano ao DNA/genética , Exposição Ocupacional , Compostos Organofosforados/toxicidade , Praguicidas/toxicidade , Polimorfismo Genético/genética , Ensaio Cometa , Citocromo P-450 CYP2C9 , Dano ao DNA/efeitos dos fármacos , Genótipo , Humanos , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase Via Transcriptase Reversa
15.
Mutat Res ; 725(1-2): 36-42, 2011 Oct 09.
Artigo em Inglês | MEDLINE | ID: mdl-21736951

RESUMO

GSTM1, T1 and P1 are important enzymes of glutathione S-transferases (GSTs), involved in the metabolism of many endogenous and exogenous compounds. Individual genetic variation in these metabolizing enzymes may influence the metabolism of their substrates. The present study was designed to determine the genotoxic effects using DNA damage and its association with GSTM1, GSTT1, and GSTP1 (Ile105Val) genetic polymorphisms in workers occupationally exposed to organophosphate pesticides (OPs). We examined 230 subjects including 115 workers occupationally exposed to OPs and an equal number of normal healthy controls. The DNA damage was evaluated using the alkaline comet assay and genotyping was done using individual PCR or PCR-RFLP. Significantly higher DNA tail moment (TM) was observed in workers as compared to control subjects (14.41 ± 2.25 vs. 6.36 ± 1.41 tail % DNA, p<0.001). The results revealed significantly higher DNA TM in workers with GSTM1 null genotype than those with GSTM1 positive (15.18 vs. 14.15 tail % DNA, p=0.03). A significantly higher DNA TM was also observed in workers with homozygous Ile-Ile GSTP1 genotype than heterozygous (Ile-Val) and mutant (Val-Val) GSTP1 genotype (p=0.02). In conclusion, the results show that null deletion of GSTM1 and homozygote wild GSTP1 genotype could be related to inter-individual differences in DNA damage arises from the gene-environment interactions in workers occupationally exposed to OPs.


Assuntos
Dano ao DNA , Glutationa S-Transferase pi/genética , Glutationa Transferase/genética , Exposição Ocupacional , Compostos Organofosforados/toxicidade , Praguicidas/toxicidade , Polimorfismo Genético , Adulto , Estudos de Casos e Controles , Ensaio Cometa , Humanos , Masculino , Pessoa de Meia-Idade , Fumar
16.
BMJ Case Rep ; 14(7)2021 Jul 21.
Artigo em Inglês | MEDLINE | ID: mdl-34290019

RESUMO

Isolated hydatid disease of the breast is a rare condition, possessing a diagnostic dilemma for the clinicians. Hydatid disease is common in endemic areas affecting most commonly the liver and lungs. Other organs rarely involved are the kidney, bone and brain. It is caused by the parasite Echinococcus granulosus, widely spread by cattle and sheep. Humans are the accidental host for this organism. We present a similar case of isolated hydatid cyst of the breast, which was diagnosed preoperatively and managed successfully.


Assuntos
Equinococose , Echinococcus granulosus , Echinococcus , Animais , Mama/cirurgia , Bovinos , Equinococose/diagnóstico por imagem , Equinococose/cirurgia , Humanos , Fígado , Ovinos
17.
Ann Med Surg (Lond) ; 67: 102486, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34188908

RESUMO

BACKGROUND: Ever since the advent of mesh hernioplasty with low recurrence rates, surgeons have turned a blind eye towards its devastating mesh related complications. Consequently, the quest for the best hernia surgery, that is as effective as the mesh repair but lacks its complications, continues. OBJECTIVES: The present study was carried out to compare the results of the Lichtenstein repair with the Desarda repair in the treatment of inguinal hernias. METHODS: A total of 77 patients with 87 hernias were randomly allocated into two groups to undergo either the Desarda repair (Group I, 39 patients with 45 hernias) or the Lichtenstein repair (Group II, Control, 38 patients with 42 hernias). 3 patients didn't complete the follow-up and were excluded from analysis. Finally, 40 hernias were analyzed in the Lichtenstein group and 44 in the Desarda group. RESULTS: After a 6-month follow-up period it was found that neither of the two groups had any recurrence. The incidence of chronic inguinodynia was much higher in the Lichtenstein group as compared to Desarda group. The pain scores, mean operating time, mean time to return to work and analgesic requirement was much lower with the Desarda repair as compared to Lichtenstein repair. CONCLUSION: Desarda repair was found to be as effective as the Lichtenstein repair in terms of recurrence and better in terms of chronic inguinodynia, complications and post operative pain scores. Desarda repair requires a significantly shorter operating time. The economic burden of this repair is much less compared to mesh repair.

18.
Niger J Surg ; 27(1): 5-8, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34012234

RESUMO

OBJECTIVE: The objective is to study the role of antibiotic prophylaxis, if any, in the prevention of wound infection after open mesh repair of primary inguinal hernias. MATERIALS AND METHODS: Patients coming to outpatient department for open mesh repair of inguinal hernia were randomized into the placebo group and antibiotic group, a total of 150 patients were enrolled in the study. Follow-up was done up to 1 month to look for any evidence of surgical site infection using the criteria of Centers for Disease Control on wound infection. RESULTS: Twelve patients in the antibiotic group and nine patients in the placebo group were found to have evidence of surgical site infection. This difference was found to be insignificant with P = 0.14. Three patients in the placebo group developed deep surgical site infection but on analysis, this difference was also found to be insignificant with P = 0.122.None of these patients required mesh removal. CONCLUSION: The result of the present study suggests that the use of prophylactic antibiotics during mesh repair of primary inguinal hernias does not give any extra protection from infections. Multicenter meta-analysis is required to give definite guidelines regarding the use of prophylactic antibiotics.

19.
Maedica (Bucur) ; 15(3): 412-415, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33312261

RESUMO

A 60-year old female presented to the emergency department with complaints of acute abdominal pain and lump in the right upper abdomen. Physical examination revealed a large tender abdominal lump in the right hypochondrium, extending up to the right lumbar region. Further examination revealed that the lump was parietal and not intra-abdominal. Contrast Enhanced Computed Tomography abdomen was done and a right rectus sheath hematoma was diagnosed. No predisposing factor for spontaneous rectus sheath hematoma was identified. Following an unsuccessful conservative treatment, the patient underwent surgical drainage of rectus sheath hematoma with ligation of bleeding vessels. She fully recovered, with an uneventful postoperative period and without recurrence.

20.
Case Rep Urol ; 2020: 4601474, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31984148

RESUMO

A 52-year-old male presented to surgery emergency with acute retention of urine. Patient was relieved in the emergency setting by catheterization and bladder irrigation. Urine was sterile; however, microscopy revealed field full of RBCs (>50/high-power field) and pus cells (>20/hpf). Cystoscopy revealed fungal balls in the urinary bladder which upon histopathological examination showed Aspergillus species. Patient was managed with systemic voriconazole and bladder wash with diluted povidone iodine. Predisposing factors diabetes mellitus and benign prostatic hyperplasia were medically managed, and patient recovered well. This case stresses the importance of considering isolated fungal urinary infections in predisposed individuals.

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