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1.
Glob Health Action ; 17(1): 2363300, 2024 Dec 31.
Artigo em Inglês | MEDLINE | ID: mdl-39034827

RESUMO

BACKGROUND: Ni-kshay Poshan Yojana (NPY), a direct benefit transfer scheme under the National Tuberculosis Elimination Program (NTEP) in India, provides a monthly benefit of INR500 for nutritional support of persons with TB (PwTB). OBJECTIVES: To determine the proportion of PwTB receiving atleast one NPY instalment and pattern of utilisation; to ascertain factors associated with NPY non-receipt and association of NPY receipt with TB treatment outcome. METHODS: In our cross-sectional study, we used multi-stage sampling to select PwTB whose treatment outcome was declared between May 2022 and February 2023. A cluster-adjusted, generalized linear model was used to identify factors associated with the non-receipt of NPY and determine association between NPY receipt and TB treatment outcome. RESULTS: Among 3201 PwTB, 2888 (92.7%; 95% CI 89.8%, 94.8%) had received at least one NPY instalment, and 1903 (64.2%; 95% CI 58.9%, 69.2%) self-reported receipt of benefit. The median (IQR) time to receipt of first instalment was 105 (60,174) days. Non-receipt was significantly higher among PwTB from states with low TB score (aPR = 2.34; 95%CI 1.51, 3.62), who do not have bank account (aPR = 2.48; 95%CI 1.93, 3.19) and with unknown/missing diabetic status (aPR = 1.69; 95%CI 1.11, 2.55). Unfavorable treatment outcomes were associated with non-receipt of NPY (aPR 4.93; 95%CI 3.61,6.75) after adjusting for potential confounders. CONCLUSION: Majority of the PwTB received atleast one NPY instalment, but they experience significant delays. Most of the recipients utilised NPY for nutrition. Longitudinal follow-up studies are required to study the impact of NPY on treatment outcomes.


Main findings: Five years since implementation, almost ninety percent of persons with tuberculosis in India had received at least one benefit under Ni-kshay Poshan Yojana, most of whom utilise it for nutrition.Added knowledge: Persons with tuberculosis in India experience a median delay of over three months to receive the first instalment of the benefit.Global health impact for policy and action: Ensuring timely credit of benefits is crucial to enable its utilisation by persons with tuberculosis for better nutrition and favourable treatment outcomes.


Assuntos
Tuberculose , Humanos , Índia , Masculino , Feminino , Estudos Transversais , Adulto , Tuberculose/tratamento farmacológico , Pessoa de Meia-Idade , Antituberculosos/uso terapêutico , Adulto Jovem , Adolescente , Resultado do Tratamento , Programas Nacionais de Saúde
2.
NPJ Precis Oncol ; 8(1): 63, 2024 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-38438481

RESUMO

Head and neck cancer is a major cause of morbidity and mortality worldwide. The identification of genetic alterations in head and neck cancer may improve diagnosis and treatment outcomes. In this study, we report the identification and functional characterization of UBE3C-LRP5 translocation in head and neck cancer. Our whole transcriptome sequencing and RT-PCR analysis of 151 head and neck cancer tumor samples identified the LRP5-UBE3C and UBE3C-LRP5 fusion transcripts in 5.3% of patients of Indian origin (n = 151), and UBE3C-LRP5 fusion transcripts in 1.2% of TCGA-HNSC patients (n = 502). Further, whole genome sequencing identified the breakpoint of UBE3C-LRP5 translocation. We demonstrate that UBE3C-LRP5 fusion is activating in vitro and in vivo, and promotes the proliferation, migration, and invasion of head and neck cancer cells. In contrast, depletion of UBE3C-LRP5 fusion suppresses the clonogenic, migratory, and invasive potential of the cells. The UBE3C-LRP5 fusion activates the Wnt/ß-catenin signaling by promoting nuclear accumulation of ß-catenin, leading to upregulation of Wnt/ß-catenin target genes, MYC, CCND1, TCF4, and LEF1. Consistently, treatment with the FDA-approved drug, pyrvinium pamoate, significantly reduced the transforming ability of cells expressing the fusion protein and improved survival in mice bearing tumors of fusion-overexpressing cells. Interestingly, fusion-expressing cells upon knockdown of CTNNB1, or LEF1 show reduced proliferation, clonogenic abilities, and reduced sensitivity to pyrvinium pamoate. Overall, our study suggests that the UBE3C-LRP5 fusion is a promising therapeutic target for head and neck cancer and that pyrvinium pamoate may be a potential drug candidate for treating head and neck cancer harboring this translocation.

3.
J Biophotonics ; 14(8): e202100047, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33871929

RESUMO

Raman spectroscopy was performed on GSM 900 and 1800 MHz mobile phone signal exposed red blood cells (RBCs). The observed changes in the Raman spectra of mobile signal exposed RBCs compared to unexposed control suggest reduced hemoglobin-oxygen affinity for the exposed cells. The possible mechanism may involve activation of the voltage gated membrane Ca2+ channels by the mobile phone emissions resulting in an increase in the levels of adenosine triphosphate (ATP) and 2,3-diphosphoglycerate (2,3-DPG) in cells via altered metabolic activities. Further studies carried out with fluorescent Ca2+ indicator confirmed increased intracellular Ca2+ level in the exposed cells. Since intracellular ATP level influences the shape and mechanics of RBCs, exposed cells were studied using diffraction phase microscopy and optical tweezers. Detectable changes in shape and mechanical properties were observed due to mobile signal exposure.


Assuntos
Telefone Celular , Eritrócitos , Contagem de Eritrócitos , Hemoglobinas , Humanos , Pinças Ópticas
4.
J Biomed Opt ; 22(10): 1-9, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29055124

RESUMO

Shape variations of red blood cells (RBCs) are known to occur upon exposure to various drugs or under diseased conditions. The commonly observed discocytic RBCs can be transformed to echinocytic or stomatocytic shape under such conditions. Raman spectra of the three major shape variations, namely discocyte, echinocyte, and stomatocyte, of RBCs were studied while subjecting the cells to oxygenated and deoxygenated conditions. Analysis of the recorded spectra suggests an increased level of hemoglobin (Hb)-oxygen affinity for the echinocytes. Also, some level of Hb degradation could be noticed for the deoxygenated echinocytes. The effects may arise from a reduced level of intracellular adenosine triphosphate in echinocytic cells and an increased fraction of submembrane Hb.


Assuntos
Forma Celular , Eritrócitos/citologia , Eritrócitos/metabolismo , Hemoglobinas/metabolismo , Oxigênio/metabolismo , Trifosfato de Adenosina , Humanos , Análise Espectral Raman
5.
Chemistry ; 22(4): 1424-34, 2016 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-26748733

RESUMO

A new triphenylamine-based organometallic Pt(II) luminogen (1) and its analogous organic compound (2) are reported. The molecules are decorated with aldehyde functionality to improve their photophysical properties by utilising donor-acceptor interactions. The single crystal X-ray structure analysis of Pt(II) analogue 1 revealed that the neighbouring molecules were loosely organised by weak intermolecular C-H⋅⋅⋅π interactions. Because of the twisted nature of the triphenylamine backbone the compounds showed aggregation-induced emission enhancement in THF/water mixture. Due to their loose crystal packing, upon application of external stimuli these luminogens exhibited mechano-fluorochromic behaviour. The crystalline forms of the compounds displayed a more superior emission efficiency than the grinded samples. Moreover, the compounds showed crystallization-induced emission enhancement (CIEE) and exhibited chemodosimetric response towards cysteine under physiological condition.


Assuntos
Compostos de Anilina/química , Cisteína/química , Compostos Organoplatínicos/química , Cristalização , Espectroscopia de Ressonância Magnética , Modelos Moleculares , Estrutura Molecular
6.
Analyst ; 141(4): 1339-46, 2016 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-26738697

RESUMO

We report the results of our investigations on the use of Raman optical tweezers for label free analysis of cells in different phases of their cell cycle. The studies performed on human colon adenocarcinoma (Colo-205) cells synchronized in G0/G1 and G2/M phases showed that the DNA Raman band at 783 cm(-1) in the Raman spectra of optically trapped cells can provide information about the DNA content in the nucleus of the cell without the need for the isolation of the nucleus. The histograms of intensity of this band among the cell populations were found to corroborate the results obtained from fluorescence image cytometry performed on DAPI stained cells.


Assuntos
Ciclo Celular , Pinças Ópticas , Linhagem Celular Tumoral , Humanos , Microscopia de Fluorescência
7.
J Orthop Surg (Hong Kong) ; 21(2): 245-8, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24014794

RESUMO

Rhinosporidiosis is a chronic granulomatous disease caused by Rhinosporidium seeberi. It usually occurs in the mucous membranes of nose, nasopharynx, and eyes, and less commonly in extra nasal sites such as skin, bones, genitalia, and even the internal organs. Rhinosporidiosis occurs in the wrist joint with isolated bony involvement is rare. We report one such case in a 50-year-old man who presented with a non-tender, fixed swelling over his anterolateral aspect of left forearm. Radiography and computed tomography showed a lytic destructive lesion involving the distal radius, ulna, carpals, and base of metacarpals. Biopsy revealed features of rhinosporidiosis. The patient underwent below-elbow amputation.


Assuntos
Rinosporidiose/diagnóstico , Rinosporidiose/cirurgia , Rhinosporidium , Articulação do Punho/parasitologia , Amputação Cirúrgica , Animais , Ossos do Carpo/diagnóstico por imagem , Ossos do Carpo/parasitologia , Ossos do Carpo/cirurgia , Humanos , Masculino , Ossos Metacarpais/diagnóstico por imagem , Ossos Metacarpais/parasitologia , Ossos Metacarpais/cirurgia , Pessoa de Meia-Idade , Radiografia , Rádio (Anatomia)/diagnóstico por imagem , Rádio (Anatomia)/parasitologia , Rádio (Anatomia)/cirurgia , Ulna/diagnóstico por imagem , Ulna/parasitologia , Ulna/cirurgia , Articulação do Punho/diagnóstico por imagem , Articulação do Punho/cirurgia
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