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1.
Cureus ; 16(4): e58275, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38752059

RESUMO

Osteochondromas (OC), or exostoses, are developmental defects rather than true neoplasms. Misdirected physeal bone growths give rise to OC. It causes cartilage-capped bony extensions to emerge from the lateral outlines of endochondral bones. We discuss a case of OC in a 35-year-old female who presented with severe chest wall deformity and breathlessness due to compromised left lung function. CT scan showed a vast osteochondroma arising from the ventral surface of the scapula, which was palpable in the supra mammary region on the left side. The tumor mass was completely excised from the base of the stalk. Her breathlessness and compromised left lung function returned to normal in the post-op period. However, the chest deformity was corrected over two months. The article provides insights into the presentation in a patient with such a massive tumor due to its location. Surgical excision should be the treatment of choice for huge osteochondromas.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38716549

RESUMO

In defiance of the vast amount of information regarding Alzheimer's disease (AD) that has been learned over the past thirty years, progress toward developing an effective therapy has been difficult. A neurological ailment that progresses and cannot be reversed is Alzheimer's disease, which shows neurofibrillary tangles, beta-amyloid plaque, and a lack of cognitive processes that is created by tau protein clumps with hyperphosphorylation that finally advances to neuronal damage without a recognized treatment, which has stimulated research into new therapeutic strategies. The protein CAS9 is linked to CRISPR, which is a clustered Regularly Interspaced Short Palindromic Repeat that inactivates or corrects a gene by recognizing a gene sequence that produces a doublestranded break has enchanted a whole amount of interest towards its potency to cure gene sequences in AD. The novel CRISPR-Cas9 applications for developing in vitro and in vivo models to the benefit of AD investigation and therapies are thoroughly analyzed in this work. The discussion will also touch on the creation of delivery methods, which is a significant obstacle to the therapeutic use of CRISPR/Cas9 technology. By concentrating on specific genes, such as those that are significant early-onset AD risk factors and late-onset AD risk factors, like the apolipoprotein E4 (APOE4) gene, this study aims to evaluate the potential application of CRISPR/Cas9 as a possible treatment for AD.

3.
Int J Biol Macromol ; 261(Pt 2): 129901, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38316328

RESUMO

Stimuli responsive delivery systems, also known as smart/intelligent drug delivery systems, are specialized delivery vehicles designed to provide spatiotemporal control over drug release at target sites in various diseased conditions, including tumor, inflammation and many others. Recent advances in the design and development of a wide variety of stimuli-responsive (pH, redox, enzyme, temperature) materials have resulted in their widespread use in drug delivery and tissue engineering. The aim of this review is to provide an insight of recent nanoparticulate drug delivery systems including polymeric nanoparticles, dendrimers, lipid-based nanoparticles and the design of new polymer-drug conjugates (PDCs), with a major emphasis on natural along with synthetic commercial polymers used in their construction. Special focus has been placed on stimuli-responsive polymeric materials, their preparation methods, and the design of novel single and multiple stimuli-responsive materials that can provide controlled drug release in response a specific stimulus. These stimuli-sensitive drug nanoparticulate systems have exhibited varying degrees of substitution with enhanced in vitro/in vivo release. However, in an attempt to further increase drug release, new dual and multi-stimuli based natural polymeric nanocarriers have been investigated which respond to a mixture of two or more signals and are awaiting clinical trials. The translation of biopolymeric directed stimuli-sensitive drug delivery systems in clinic demands a thorough knowledge of its mechanism and drug release pattern in order to produce affordable and patient friendly products.


Assuntos
Nanopartículas , Neoplasias , Polímeros Responsivos a Estímulos , Humanos , Portadores de Fármacos/química , Sistemas de Liberação de Medicamentos/métodos , Nanopartículas/química , Polímeros/química , Neoplasias/tratamento farmacológico
4.
Cureus ; 16(1): e51684, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38318575

RESUMO

Till now, oral squamous cell carcinoma (OSCC) is graded as well-differentiated, moderately-differentiated, poorly-differentiated, and undifferentiated. However, this grading does not have a prediction of the prognosis of the patient. Also, prognosis impacts lymph node metastases, surgical margins, and vascular invasions (neural invasion, muscular invasion, salivary gland invasion). The prognosis of lymph node metastases is significant, which affects the survival of the patients which is 50%. So, a dependable blood marker is needed for prognosis in OSCC patients with loco-regional and distant recurrence. Some factors can be assisted only after surgery and invasive techniques to check the prognosis of the disease. Despite the ease of examining the oral cavity, there is no practical approach for non-invasive screening and detecting cancer. As it is abrupt to use such invasive procedures from time to time, there is a need for nonsurgical and reliable techniques to assess the progression of tumors. Also, frozen sections are helpful during the intraoperative procedure to evaluate the lymph node metastases. An increase in the number of tumor cells through blood is a significant event in disease metastases toward the peripheral blood. Oral health impact assessment instruments could aid in determining the quality of life, and their usage in the initial stages of oral carcinoma could help physicians choose the best treatment option for enhancing the quality of life.

5.
LGBT Health ; 2023 Nov 10.
Artigo em Inglês | MEDLINE | ID: mdl-37948558

RESUMO

Purpose: Weight stigma is associated with poor mental and emotional health and may be especially harmful to sexual and gender minority (SGM) individuals due to co-occurring minority stress. The literature on this topic has not been synthesized. We conducted a scoping review of the literature on weight stigma and mental and emotional health among SGM individuals to synthesize findings, highlight gaps, and identify clinical and research implications. Methods: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews, we searched PubMed, CINAHL, PsycINFO, and Scopus in April 2022. Included studies examined the relationship between weight stigma and mental and emotional health among SGM people of any age. We did not restrict study design or publication date. Results: Of 513 records identified, 23 met inclusion criteria. Most focused on sexual minority individuals; one focused specifically on gender minority individuals. Weight stigma was associated with poorer mental and emotional health in nearly all studies. The most common outcomes examined were self-esteem, maladaptive eating, and depressive symptoms. Five studies, all using the same dataset, focused on adolescents; none focused on older adults. Conclusions: Weight stigma is associated with poorer mental and emotional health among SGM individuals and, through its intersections with minority stress, might impact SGM individuals differently than their cisgender and heterosexual counterparts. There are important gaps regarding weight stigma's effect on SGM adolescents and gender minority individuals and its relationship with a broader range of mental and emotional health outcomes.

6.
Curr Cardiol Rep ; 25(11): 1543-1553, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-37943426

RESUMO

PURPOSE OF REVIEW: Patient decision aids (PDAs) are tools that help guide treatment decisions and support shared decision-making when there is equipoise between treatment options. This review focuses on decision aids that are available to support cardiac treatment options for underrepresented groups. RECENT FINDINGS: PDAs have been developed to support multiple treatment decisions in cardiology related to coronary artery disease, valvular heart disease, cardiac arrhythmias, heart failure, and cholesterol management. By considering the unique needs and preferences of diverse populations, PDAs can enhance patient engagement and promote equitable healthcare delivery in cardiology. In this review, we examine the benefits, challenges, and current trends in implementing PDAs, with a focus on improving decision-making processes and outcomes for patients from underrepresented racial and ethnic groups. In addition, the article highlights key considerations when implementing PDAs and potential future directions in the field.


Assuntos
Cardiologia , Doença da Artéria Coronariana , Humanos , Técnicas de Apoio para a Decisão , Tomada de Decisões , Doença da Artéria Coronariana/terapia , Participação do Paciente
7.
Org Biomol Chem ; 21(36): 7267-7289, 2023 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-37655687

RESUMO

Imidazo[1,2-a]pyridine has attracted much interest in drug development because of its potent medicinal properties, therefore the discovery of novel methods for its synthesis and functionalization continues to be an exciting area of research. Although transition metal catalysis has fuelled the most significant developments, extremely beneficial metal-free approaches have also been identified. Even though pertinent reviews focused on imidazo[1,2-a]pyridine synthesis, properties (physicochemical and medicinal), and functionalization at the C3 position have been published, none of these reviews has focused on the outcomes obtained in the field of global ring functionalization. We wish here to describe a brief synthesis and an overview of all the functionalization reactions at each carbon atom, viz, C2, C3, C5, C6, C7 and C8 of this scaffold, divided into sections based on site-selectivity and the type of functionalization methods used.

8.
Nurs Clin North Am ; 58(3): 461-473, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37536792

RESUMO

This article summarizes existing evidence on cardiovascular disease (CVD) risk and CVD diagnoses among sexual and gender minority adults and provides recommendations for providing nursing care to sexual and gender minority adults with CVD. More research is needed to develop evidence-based strategies to care for sexual and gender minority adults with CVD.


Assuntos
Doenças Cardiovasculares , Cuidados de Enfermagem , Minorias Sexuais e de Gênero , Adulto , Humanos , Comportamento Sexual
9.
Ann Behav Med ; 57(12): 1004-1013, 2023 11 16.
Artigo em Inglês | MEDLINE | ID: mdl-37306778

RESUMO

BACKGROUND: Sexual minority adults are at higher risk of hypertension than their heterosexual counterparts. Sexual minority stressors (i.e., unique stressors attributed to sexual minority identity) are associated with a variety of poor mental and physical health outcomes. Previous research has not tested associations between sexual minority stressors and incident hypertension among sexual minority adults. PURPOSE: To examine the associations between sexual minority stressors and incident hypertension among sexual minority adults assigned female sex at birth. METHODS: Using data from a longitudinal study, we examined associations between three sexual minority stressors and self-reported hypertension. We ran multiple logistic regression models to estimate the associations between sexual minority stressors and hypertension. We conducted exploratory analyses to determine whether these associations differed by race/ethnicity and sexual identity (e.g., lesbian/gay vs. bisexual). RESULTS: The sample included 380 adults, mean age 38.4 (± 12.81) years. Approximately 54.5% were people of color and 93.9% were female-identified. Mean follow-up was 7.0 (± 0.6) years; during which 12.4% were diagnosed with hypertension. We found that a 1-standard deviation increase in internalized homophobia was associated with higher odds of developing hypertension (AOR 1.48, 95% Cl: 1.06-2.07). Stigma consciousness (AOR 0.85, 95% CI: 0.56-1.26) and experiences of discrimination (AOR 1.07, 95% CI: 0.72-1.52) were not associated with hypertension. The associations of sexual minority stressors with hypertension did not differ by race/ethnicity or sexual identity. CONCLUSIONS: This is the first study to examine the associations between sexual minority stressors and incident hypertension in sexual minority adults. Implications for future studies are highlighted.


High blood pressure (HBP) is a major public health concern in the USA. Sexual minority adults (such as gay/lesbian or bisexual) are at greater risk of HBP than heterosexual adults. However, the reasons for this difference have not been studied. Sexual minority stressors are unique stressors specific to sexual minority individuals. Multiple studies have shown that sexual minority stressors, such as internalized homophobia (defined as someone's internalization of negative societal values towards sexual minority individuals), stigma consciousness (defined as the extent that someone expects to be stereotyped), and experiences of discrimination due to sexual identity, are associated with poor health outcomes. Yet, the relationship between these stressors and HBP has not been studied in this population. In our study, we examined the associations between sexual minority stressors and newly diagnosed HBP among sexual minority adults. Those who reported more internalized homophobia had a higher likelihood of developing HBP within 7 years. There were no significant associations between other sexual minority stressors and HBP. We also found no differences in the associations of sexual minority stressors and HBP by race/ethnicity or sexual identity. Findings highlight the importance of educating healthcare professionals about risk factors for hypertension in sexual minority adults.


Assuntos
Minorias Sexuais e de Gênero , Recém-Nascido , Adulto , Humanos , Feminino , Masculino , Estudos Longitudinais , Bissexualidade , Comportamento Sexual , Heterossexualidade
10.
JAMA Cardiol ; 8(4): 335-346, 2023 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-36811854

RESUMO

Importance: Research on the cardiovascular health (CVH) of sexual minority adults has primarily examined differences in the prevalence of individual CVH metrics rather than comprehensive measures, which has limited development of behavioral interventions. Objective: To investigate sexual identity differences in CVH, measured using the American Heart Association's revised measure of ideal CVH, among adults in the US. Design, Setting, and Participants: This cross-sectional study analyzed population-based data from the National Health and Nutrition Examination Survey (NHANES; 2007-2016) in June 2022. Participants included noninstitutional adults aged 18 to 59 years. We excluded individuals who were pregnant at the time of their interview and those with a history of atherosclerotic cardiovascular disease or heart failure. Exposures: Self-identified sexual identity categorized as heterosexual, gay/lesbian, bisexual, or something else. Main Outcomes and Measures: The main outcome was ideal CVH (assessed using questionnaire, dietary, and physical examination data). Participants received a score from 0 to 100 for each CVH metric, with higher scores indicating a more favorable CVH profile. An unweighted average was calculated to determine cumulative CVH (range, 0-100), which was recoded as low, moderate, or high. Sex-stratified regression models were performed to examine sexual identity differences in CVH metrics, disease awareness, and medication use. Results: The sample included 12 180 participants (mean [SD] age, 39.6 [11.7] years; 6147 male individuals [50.5%]). Lesbian (B = -17.21; 95% CI, -31.98 to -2.44) and bisexual (B = -13.76; 95% CI, -20.54 to -6.99) female individuals had less favorable nicotine scores than heterosexual female individuals. Bisexual female individuals had less favorable body mass index scores (B = -7.47; 95% CI, -12.89 to -1.97) and lower cumulative ideal CVH scores (B = -2.59; 95% CI, -4.84 to -0.33) than heterosexual female individuals. Compared with heterosexual male individuals, gay male individuals had less favorable nicotine scores (B = -11.43; 95% CI, -21.87 to -0.99) but more favorable diet (B = 9.65; 95% CI, 2.38-16.92), body mass index (B = 9.75; 95% CI, 1.25-18.25), and glycemic status scores (B = 5.28; 95% CI, 0.59-9.97). Bisexual male individuals were twice as likely as heterosexual male individuals to report a diagnosis of hypertension (adjusted odds ratio [aOR], 1.98; 95% CI, 1.10-3.56) and use of antihypertensive medication (aOR, 2.20; 95% CI, 1.12-4.32). No differences in CVH were found between participants who reported their sexual identity as something else and heterosexual participants. Conclusion and Relevance: Results of this cross-sectional study suggest that bisexual female individuals had worse cumulative CVH scores than heterosexual female individuals, whereas gay male individuals generally had better CVH than heterosexual male individuals. There is a need for tailored interventions to improve the CVH of sexual minority adults, particularly bisexual female individuals. Future longitudinal research is needed to examine factors that might contribute to CVH disparities among bisexual female individuals.


Assuntos
Heterossexualidade , Minorias Sexuais e de Gênero , Adulto , Masculino , Humanos , Feminino , Estados Unidos/epidemiologia , Inquéritos Nutricionais , Nicotina , Estudos Transversais
11.
Circ Cardiovasc Qual Outcomes ; 15(12): e008999, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36538586

RESUMO

BACKGROUND: Recent evidence suggests that sexual minority (eg, gay/lesbian, bisexual) adults might be at increased risk of hypertension compared with heterosexual adults. However, disparities by sexual identity in antihypertensive medication use among adults with hypertension have not been comprehensively examined. METHODS: We analyzed data from the Behavioral Risk Factor Surveillance System (2015-2019), to examine sexual identity differences in the prevalence of hypertension and antihypertensive medication use among adults. We ran sex-stratified logistic regression models to estimate the odds ratios of diagnosis of hypertension and antihypertensive medication use among sexual minority (ie, gay/lesbian, bisexual, and other) and heterosexual adults (reference group). RESULTS: The sample included 420 340 participants with a mean age of 49.7 (±17.0) years, of which 66.7% were Non-Hispanic White. Compared with heterosexual participants of the same sex, bisexual women (adjusted odds ratio, 1.19 [95% CI, 1.03-1.37]) and gay men (adjusted odds ratio, 1.18 [95% CI, 1.03-1.35]) were more likely to report having been diagnosed with hypertension. Among women with diagnosed hypertension, bisexual women had lower odds of current antihypertensive medication use (adjusted odds ratio, 0.71 [95% CI, 0.56-0.90]). Among men with diagnosed hypertension, gay men were more likely than heterosexual men to report current antihypertensive medication use (adjusted odds ratio, 1.39 [95% CI, 1.10-1.78]). Compared with heterosexual participants of the same sex, there were no differences in hypertension or antihypertensive medication use among lesbian women, bisexual men, and participants who reported their sexual identity as other. CONCLUSIONS: Clinical and public health interventions are needed to reduce the risk of hypertension among bisexual women and gay men. Bisexual women were at higher risk of untreated hypertension, which may be attributed to lower health care utilization due to fear of discrimination from health care providers and socioeconomic disadvantage. Future research is needed to better understand factors that may contribute to untreated hypertension among bisexual women with hypertension.


Assuntos
Hipertensão , Minorias Sexuais e de Gênero , Masculino , Adulto , Humanos , Feminino , Pessoa de Meia-Idade , Anti-Hipertensivos/efeitos adversos , Sistema de Vigilância de Fator de Risco Comportamental , Prevalência , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Hipertensão/epidemiologia
13.
Virusdisease ; 32(2): 260-265, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33869673

RESUMO

Chikungunya is a notorious viral infection, which affects a large segment of world populations in absence of vaccines and antivirals. The current study evaluates of anti-chikungunya activities of Psidium guajava leaves extract and their green synthesized silver nanoparticles. Green synthesized nanoparticles were well characterized for their size and stability by dynamic light scattering (DLS), zeta potential, scanning electron microscopy (SEM) and their functional groups were analyzed by FTIR. Maximum non-toxic doses (MNTD) of extracts and nanoparticles were analysed by using Vero cell-lines. Anti-chikungunya activities of extracts and nano-particles were determined on Vero cells and their effects on cell viability were measured by MTT assay. The P. guajava nano-particles and extracts revealed the anti-chikungunya activities in the Vero cell. The cells viability was increased by 40% and 60% as compared to the virus control, when these cells were treated with MNTD of P. guajava nano-particles and extracts, respectively. To know the reason for antiviral activity, molecular docking of phytochemicals was done against a replication essential cysteine protease (nsP2) of Chikungunya. It was found that phytochemicals; Longifollen and Quercetin showed the minimum binding energy with nsP2. P. guajava extracts can be exploited to develop an effective anti-chikungunya agent. In the absence of CHIKV vaccines and antivirals, P. guajava may be used to develop rapid, responsive, specific, and cost-effective anti-chikungunya agents. Supplementary Information: The online version contains supplementary material available at 10.1007/s13337-021-00685-4.

14.
J Aging Health ; 33(5-6): 362-376, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33382014

RESUMO

Objectives: Despite increased risk for chronic disease, there is limited research that has examined disparities in multimorbidity among sexual minority adults and whether these disparities differ by age. Methods: Data were from the 2014-2018 Behavioral Risk Factor Surveillance System. We used sex-stratified multinomial logistic regression to examine differences in multimorbidity between sexual minority and heterosexual cisgender adults and whether hypothesized differences varied across age-groups. Results: The sample included 687,151 adults. Gay, lesbian, and bisexual adults had higher odds of meeting criteria for multimorbidity than same-sex heterosexual adults. These disparities were greater among sexual minority adults under the age of 50 years. Only other non-heterosexual men over the age of 50 years and lesbian women over the age of 80 years were less likely to have multimorbidity than their same-sex heterosexual counterparts. Discussion: Health promotion interventions to reduce adverse health outcomes among sexual minorities across the life span are needed.


Assuntos
Homossexualidade Feminina , Minorias Sexuais e de Gênero , Idoso de 80 Anos ou mais , Bissexualidade , Feminino , Heterossexualidade , Humanos , Masculino , Multimorbidade
15.
Virusdisease ; 31(2): 146-153, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32368570

RESUMO

The emerging infection of COVID-19 was initiated from Wuhan, China, have been spread to more than 210 countries around the globe including India. The clinical symptoms of COVID-19 are very similar to other respiratory viruses. The number of laboratory-confirmed cases and associated deaths are increasing regularly in various parts of the World. Seven coronaviruses (229E, NL63, OC43, HKU1, SARS, MERS and, COVID-19) can naturally infect human beings. Out of these four (229E-CoV, NL63-CoV, OC43-CoV, HKU1-CoV) are responsible for mild upper respiratory infections, while SARS-CoV, MERS-CoV, and COVID-19 are well known for their high mortality. Few mild strains of coronaviruses are circulating in India but there is no evidence of SARS and MERS outbreaks. The COVID-19 is an emerging viral infection responsible for pandemics. Fortunately, the mortality of COVID-19 is low as compared with SARS and MERS, the majority of its cases are recovered. The death toll of COVID-19 is high even after its low mortality because COVID-19 causes a pandemic while SARS-CoV and MERS-CoV cause epidemics only. COVID-19 influenced the large segments of the world population, which led to a public health emergency of international concern, putting all health organizations on high alert. COVID-19 is the first coronavirus after Spanish Flu 1918-1919, who has extremely influenced the health system, economy, and psychology of India. The present study review is on the general continent, virology, pathogenesis, global epidemiology, clinical presentation, diagnosis, treatment and control of COVID-19 with the reference to India.

16.
Can J Microbiol ; 66(2): 87-98, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31682478

RESUMO

Zika virus (ZIKV) is a mosquito-borne virus that was first isolated from Zika forest, Uganda, in 1947. Since its inception, major and minor outbreaks have been documented from several parts of world. Aedes spp. mosquitoes are the primary vectors of ZIKV, but the virus can also be transmitted through sexual practices, materno-fetal transmission, and blood transfusion. The clinical presentations of symptomatic ZIKV infections are similar to dengue and chikungunya, including fever, headache, arthralgia, retro-orbital pain, conjunctivitis, and rash. ZIKV often causes mild illness in the majority of cases, but in some instances, it is linked with congenital microcephaly and autoimmune disorders like Guillain-Barré syndrome. The recent Indian ZIKV outbreak suggests that the virus is circulating in the South East Asian region and may cause new outbreaks in future. At present, no specific vaccines or antivirals are available to treat ZIKV, so management and control of ZIKV infections rely mostly on preventive measures.


Assuntos
Aedes/virologia , Doenças Transmissíveis Emergentes/epidemiologia , Surtos de Doenças , Complicações Infecciosas na Gravidez/virologia , Infecção por Zika virus/epidemiologia , Zika virus/fisiologia , Animais , Sudeste Asiático/epidemiologia , Doenças Transmissíveis Emergentes/prevenção & controle , Doenças Transmissíveis Emergentes/transmissão , Doenças Transmissíveis Emergentes/virologia , Feminino , Saúde Global , Síndrome de Guillain-Barré , Humanos , Microcefalia , Mosquitos Vetores/virologia , Gravidez , Saúde Pública , Infecção por Zika virus/prevenção & controle , Infecção por Zika virus/transmissão , Infecção por Zika virus/virologia
17.
J Family Med Prim Care ; 8(11): 3525-3530, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31803646

RESUMO

INTRODUCTION: Child abuse is one of the pressing human rights issues which still needs to be highlighted for general public, especially in traditional societies. This study depicts perspectives of parents and caregivers. METHODS: The study was, conducted amongst parents visiting paediatric department (OPD and ward) at Rural Tertiary care Hospital in central India. A questionnaire was prepared and filled by parents and then was statistically analysed. RESULTS: It was seen that: 1. Majority of parents lack knowledge regarding children's education and protection (POSCO and RTE) 2. Most parents were in favour of having better career prospects for Male child. 3. Parents were also asked regarding physical, emotional and mental health of a child. Majority of the parents were of the opinion that children should be distinguished based on academic performances. The study also recommended various measures to combat child abuse.

18.
Virusdisease ; 30(4): 504-510, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31897415

RESUMO

Herpes simplex viruses (HSVs) cause a latent infection in humans which is mainly associated with characteristic cold sores or fever blisters and genital blisters. Large segments of the world population are suffering from the HSV infection and early diagnosis as well as treatments are needed to avoid further complications. HSV surveillance is very sparse, especially from developing countries including India. The aim of the present study is to develop and evaluate molecular assays for rapid detection and typing of HSV. In the present study, viral DNA was extracted from cerebro-spinal fluid from HSV suspected encephalitis patients. The conventional multiplex PCR for HSV-1 and HSV-2 was optimized and their comparative analysis was done with Real-Time qPCR for detection and typing of HSV. Out of 137 clinical samples, eleven samples (8.03%) were diagnosed as HSV positive by Real-Time qPCR while ten (7.3%) by conventional multiplex PCR which were further typed as subtyping HSV-1 (nine) and HSV-2 (two). Real-Time qPCR is highly sensitive and able to detect 9.4 × 101 to 3.1 × 106 copies/ml of HSV DNA. Conventional PCR was found to be having 99.21% specificity with 100% sensitivity. The positive predictive value was 90.91% whereas negative predictive value was 100%. Logistic regression indicates blisters with pain and skin rash as the most significant symptoms associated with HSV infection. The present study could be applied for rapid, specific, sensitive and cost-effective diagnosis of HSV-1 and HSV-2 thereby helpful in better patient management through early detection and treatment of HSV.

19.
J Phys Chem B ; 121(19): 5116-5124, 2017 05 18.
Artigo em Inglês | MEDLINE | ID: mdl-28445058

RESUMO

We report deviations from an ideal behavior of binary chalcogenide glass composition Ge20Te80 with respect to its quenching rate on mass density and thermal parameters, including glass transition temperature. In an ideal glass, the increase in quenching rate will decrease the characteristic relaxation time and correspondingly shift in the glass transition temperature (Tg) to higher temperature and result in lower density. This, however, holds only when the liquid structure remains the same as in equilibrium glass structure independent of their quenching rate. We find Ge20Te80 glass composition with higher quenching rate is found to possess larger density and lower Tg than the lower rate quenched or well annealed glass specimen. In contrast to conventional glass forming liquids, the anomalous behavior of Ge20Te80 glass with respect to quenching rate is closely related to the change in the local atomic structure with thermal history. Additionally, we found that crystal derived from the Ge20Te80 glass with different thermal history but with identical annealing conditions leads to different mass density, specific heat capacity, and local atomic structure. Thus, the observed unusual variations in the mass density and various thermal properties of Ge20Te80 glass and crystal are mainly determined by the resulting local atomic structure and concentration of defect states associated with each state.

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