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1.
Antimicrob Agents Chemother ; 65(8): e0032121, 2021 07 16.
Artículo en Inglés | MEDLINE | ID: mdl-34097482

RESUMEN

Recalcitrant dermatophytic infections of the glabrous skin (tinea corporis/cruris/faciei) pose a huge challenge to health care systems. Combinations of oral and topical drugs may potentially improve cure rates, but the same has never been objectively assessed for this condition in laboratory or clinical studies. The present study was undertaken with the aim of identifying synergistic combinations of oral and topical antifungals by testing clinical isolates obtained from patients with recalcitrant tinea corporis/cruris. Forty-two patients with tinea corporis/cruris who had failed oral antifungals or had relapsed within 4 weeks of apparent clinical cure were recruited. Twenty-one isolates were identified by sequencing (all belonging to the Trichophyton mentagrophytes/T. interdigitale species complex) and subjected to antifungal susceptibility testing (AFST) and squalene epoxidase (SQLE) gene mutation analysis. Finally, five isolates, four with underlying SQLE gene mutations and one wild-type strain, were chosen for checkerboard studies using various combinations of antifungal agents. Most isolates (n = 16) showed high MICs of terbinafine (TRB) (0.5 to >16 µg/ml), with SQLE gene mutations being present in all isolates with MICs of ≥0.5 µg/ml. Synergistic interactions were noted with combinations of itraconazole with luliconazole, TRB, and ketoconazole and propylene glycol monocaprylate (PGMC) with luliconazole and with the triple combination of PGMC with luliconazole and ketoconazole. In vitro synergistic interactions provide a sound scientific basis for the possible clinical use of antifungal combinations. Hence, these synergistic combinations may be tested for clinical utility in the wake of rising resistance among dermatophytic infections of the glabrous skin.


Asunto(s)
Tiña , Antifúngicos/farmacología , Antifúngicos/uso terapéutico , Arthrodermataceae , Farmacorresistencia Fúngica/genética , Humanos , Mutación , Glicoles de Propileno , Escualeno-Monooxigenasa/genética , Tiña/tratamiento farmacológico
2.
J Appl Microbiol ; 130(4): 1259-1272, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-32767623

RESUMEN

AIM: To investigate the genetic and pathogenic variability of Xanthomonas oryzae pv. oryzae causing bacterial blight in rice on the remote Andaman Islands, India. METHODS AND RESULTS: A total of 27 yellow-pigmented bacterial isolates representing rice fields of Andaman Islands incited blight on the susceptible-rice cultivar, C14-8. Phenotypic, pathogenic traits and 16S rRNA gene sequences revealed their identity as X. oryzae pv. oryzae. Virulence profiling indicated the prevalence of seven pathotypes of X. oryzae pv. oryzae on the Islands. Pathotypes-VI and -VII were highly virulent, whereas the pathotype-I was less virulent. Multilocus sequence typing based on nucleotide sequence polymorphism in nine housekeeping genes dnaK; fyuA; gyrB (two loci): rpoD; fusA; gapA; gltA and lepA clustered 27 isolates into 17 sequence types (STs) segregated into two clonal-complexes (CC). While CC-I comprised of isolates from Andaman Island, the CC-II is a mixture of isolates representing mainland India and Andaman Island. The data revealed trans-boundary pathogen introduction and a consequent intra-regional diversification on these islands due to the deployment of different rice cultivars in different regions. CONCLUSIONS: Genotyping and pathotyping of sland isolates revealed seven pathotypes distributed in two clonal complexes with strong indications for trans-boundary movement and consequent diversification of the bacterial pathogen. Highly virulent pathotypes of X. oryzae pv. oryzae that could overcome combinations of R-genes, xa13+Xa21 as well as xa5+xa13 were found prevalent in the Andaman Islands SIGNIFICANCE AND IMPACT OF THE STUDY: Genetic and virulence analysis of X. oryzae pv. oryzae in the Andaman Islands revealed introduction and host-mediated regional diversification and local adaptation of X oryzae pv. oryzae. The study calls for the need of multi-gene pyramiding for durable disease resistance and establishing stringent quarantine measures for safeguarding island agricultural practices in the future.


Asunto(s)
Oryza/microbiología , Enfermedades de las Plantas/microbiología , Xanthomonas/genética , Xanthomonas/patogenicidad , Proteínas Bacterianas/genética , India , Islas , Tipificación de Secuencias Multilocus , Oryza/clasificación , Polimorfismo Genético , ARN Ribosómico 16S/genética , Virulencia/genética , Xanthomonas/clasificación
3.
Artículo en Inglés | MEDLINE | ID: mdl-30275090

RESUMEN

Recalcitrant dermatophytoses are on the rise in India. High MICs of terbinafine (TRB) and squalene epoxidase (SQLE) gene mutations conferring resistance in Trichophyton spp. have been recently documented. However, studies correlating laboratory data with clinical response to TRB in tinea corporis/cruris are lacking. For this study, we investigated the clinicomycological profile of 85 tinea corporis/cruris patients and performed antifungal susceptibility testing by CLSI microbroth dilution and SQLE mutation analysis of the isolates obtained and correlated these with the responses to TRB. Patients confirmed by potassium hydroxide (KOH) mounting of skin scrapings were started on TRB at 250 mg once a day (OD). If >50% clinical clearance was achieved by 3 weeks, the same dose was continued (group 1). If response was <50%, the dose was increased to 250 mg twice a day (BD) (group 2). If the response still remained below 50% after 3 weeks of BD, the patients were treated with itraconazole (ITR; group 3). Overall, skin scrapings from 64 (75.3%) patients yielded growth on culture. Strikingly, all isolates were confirmed to be Trichophyton interdigitale isolates by internal transcribed spacer (ITS) sequencing. Thirty-nine (61%) of the isolates had TRB MICs of ≥1 µg/ml. Complete follow-up data were available for 30 culture-positive patients. A highly significant difference in modal MICs to TRB among the three treatment response groups was noted (P = 0.009). Interestingly, 8 of the 9 patients in group 3 harbored isolates exhibiting elevated TRB MICs (8 to 32 µg/ml) and SQLE mutations. The odds of achieving cure with TRB MIC < 1 µg/ml strains were 2.5 times the odds of achieving cure with the strain exhibiting MIC ≥1 µg/ml.


Asunto(s)
Antifúngicos/farmacología , Proteínas Fúngicas/genética , Escualeno-Monooxigenasa/genética , Terbinafina/farmacología , Tiña/tratamiento farmacológico , Trichophyton/efectos de los fármacos , Administración Oral , Adolescente , Adulto , Anciano , ADN de Hongos/genética , ADN Intergénico/genética , Esquema de Medicación , Farmacorresistencia Fúngica/genética , Femenino , Proteínas Fúngicas/metabolismo , Expresión Génica , Humanos , Itraconazol/farmacología , Masculino , Pruebas de Sensibilidad Microbiana , Persona de Mediana Edad , Mutación , Técnicas de Tipificación Micológica , Escualeno-Monooxigenasa/metabolismo , Tiña/microbiología , Tiña/patología , Trichophyton/enzimología , Trichophyton/genética , Trichophyton/aislamiento & purificación
4.
Dermatol Ther ; 31(2): e12580, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29193594

RESUMEN

The incidence of non dermatophytic mould (NDM) onychomycosis (OM) has been steadily increasing Fusarium spp is the most common cause of NDM OM in most geographical locations. Fusarium spp and other NDMs are largely resistant to commonly used anti-fungals. The successful use of laser and light based devices has been demonstrated in dermatophytic OM, but there is no previous report of their successful use in any NDM OM. We describe a patient with OM caused by Fusarium solani spp, who was clinically (with a normal appearing nail) and mycologically (with negative microscopy and culture on repeated samples) cured of her infection following treatment with 2 sessions of Qs NdYAG (532nm and 1064nm) given 1 month apart.


Asunto(s)
Dermatosis del Pie/radioterapia , Fusariosis/radioterapia , Fusarium/efectos de la radiación , Láseres de Estado Sólido/uso terapéutico , Terapia por Luz de Baja Intensidad/instrumentación , Uñas/microbiología , Onicomicosis/radioterapia , Adulto , Femenino , Dermatosis del Pie/diagnóstico , Dermatosis del Pie/microbiología , Fusariosis/diagnóstico , Fusariosis/microbiología , Fusarium/clasificación , Fusarium/aislamiento & purificación , Humanos , Onicomicosis/diagnóstico , Onicomicosis/microbiología , Resultado del Tratamiento
5.
Plant Dis ; 100(4): 732-738, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30688609

RESUMEN

Fourteen Ralstonia solanacearum strains from solanaceous vegetables on the Andaman Islands, India, were characterized using a polyphasic approach. The strains wilted their respective hosts within 1 to 3 weeks postinoculation. Virulence assays on tomato (Solanum lycopersicum), brinjal (eggplant; S. melongena), and chili pepper (Capsicum annuum) revealed that all strains were infective on all three hosts. However, tomato was more susceptible than eggplant and chili pepper. Strains were identified as R. solanacearum based on carbon substrate utilization profiling with Biolog similarity coefficients >0.82. Species identity was further confirmed by 16S ribosomal RNA and recN gene sequence analysis. Intraspecific identification of strains revealed the presence of race 1 biovar 3 and race 1 biovar 4. Both biovars wilted plants with similar aggressiveness. All strains were identified as phylotype I, and multilocus sequence typing revealed that the strains belong to a small number of clonal complexes that also comprise strains from mainland India, especially West Bengal state and Kerala.

7.
J Biomed Mater Res B Appl Biomater ; 112(1): e35338, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-37846459

RESUMEN

Titanium and its alloys are used to make dental implants because of its low density, high strength, and corrosion resistance. This paper describes the development of a potential biomaterial Ti-10Nb by powder metallurgy utilizing four different compaction pressures and analyses its microstructural, physical, mechanical, electrochemical, biological, and tribological behavior under various situations. The alloys were fabricated using four different compaction pressures, that is, 600, 650, 700, and 750 MPa, and sintered in a vacuum atmosphere at 1000°C for 1.5 h. The density of the samples was measured using Archimedes principle. X-ray diffraction and scanning electron microscopy equipped with energy dispersive spectroscopy were used to investigate the phase composition and microstructure, and a profilometer was used to examine the surface roughness of various samples. Vickers hardness tester was used to evaluate hardness, and a universal testing machine was used for compression testing. Corrosion and wear behavior were examined using a potentiostat and a Bio-Tribometer, respectively. This Ti-10Nb alloys consist of α + ß phase, and have 16% highest porosity in sample compacted at 600 MPa. The samples compacted at 750 MPa achieved highest hardness, yield strength, compressive strength, and elastic modulus of 450 ± 29.72 HV, 718.22 ± 16.37 MPa, 1543.59 ± 24.37 MPa, and 41.27 ± 3.29 GPa, respectively. In addition, it also possesses highest corrosion and wear resistance with lowest icorr of 0.3954 ± 0.008 µA/cm2 and wear volume of (31.25 ± 0.206) × 10-3 mm3 . These results indicate that the developed alloys have a variety of desirable properties, including high hardness, adequate compressive strength, good corrosion and wear resistance, apatite-forming capability, and a low elastic modulus, which is advantageous for avoiding stress shielding. Therefore, it may be recommended to use it as a dental implant material.


Asunto(s)
Aleaciones , Titanio , Aleaciones/química , Titanio/química , Polvos , Materiales Biocompatibles , Corrosión , Metalurgia , Ensayo de Materiales
9.
J Mech Behav Biomed Mater ; 137: 105533, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36335694

RESUMEN

The present study examined the corrosion and tribological behavior of novel Ti-5Cu-xNb alloy synthesized via powder metallurgy as a new biomedical material in a simulated bodily fluid (SBF) solution. The electrochemical impedance spectroscopy (EIS) study reveals the formation of two protective layers on the surface of alloys during the test. The alloys spontaneously produce a passivating oxide coating on their surfaces, and the breakdown potential (1.14-1.17 V) and re-passivation current density (2.07-3.04 µAcm-2) were observed during the potentiodynamic polarization test. The highest corrosion resistance was observed for the alloy Ti-5Cu-10Nb (icorr = 21.44 nA-cm-2). The SEM and XPS analysis of the corroded surface showed the formation of oxide on the surfaces of the alloys. The samples were tested at 10 N, 15 N, and 20 N loads against the zirconia counterpart to investigate the effect of loading on friction and wear. The lowest coefficient of friction was obtained for Ti-5Cu-5Nb (0.25-0.41) at 20 N loading, while the maximum for Ti-5Cu-10Nb at 15 N load falls in the range of (0.71-0.25). Additionally, they present the wear rate in the range of (5.3 × 10-8-1.45 × 10-6 mm3/mm), in accordance with the change in microstructure and mechanical properties. However, the wear rate increases with the addition of niobium and reaches the maximum for Ti-5Cu-15Nb at 20 N loading condition, but it is relatively deficient compared to commonly used implant material. Therefore, it is suggested that this ß-type Ti-5Cu-xNb alloy is a promising candidate, more suitable than the commercially used Ti and Ti-6Al-4V for dental applications.


Asunto(s)
Líquidos Corporales , Implantes Dentales , Corrosión , Aleaciones/química , Titanio/química , Óxidos , Propiedades de Superficie , Ensayo de Materiales
10.
Plant Physiol Biochem ; 202: 107933, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37549574

RESUMEN

One of the key enigmas in conventional and modern crop improvement programmes is how to introduce beneficial traits without any penalty impairment. Rice (Oryza sativa L.), among the essential staple food crops grown and utilized worldwide, needs to improve genotypes in multifaceted ways. With the global view to feed ten billion under the climatic perturbation, only a potent functional master regulator can withstand with hope for the next green revolution and food security. miRNAs are such, miniature, fine tuners for crop improvement and provide a value addition in emerging technologies, namely large-scale genotyping, phenotyping, genome editing, marker-assisted selection, and genomic selection, to make rice production feasible. There has been surplus research output generated since the last decade on miRNAs in rice, however, recent functional knowledge is limited to reaping the benefits for conventional and modern improvements in rice to avoid ambiguity and redundancy in the generated data. Here, we present the latest functional understanding of miRNAs in rice. In addition, their biogenesis, intra- and inter-kingdom signaling and communication, implication of amiRNAs, and consequences upon integration with CRISPR-Cas9. Further, highlights refer to the application of miRNAs for rice agronomical trait improvements, broadly classified into three functional domains. The majority of functionally established miRNAs are responsible for growth and development, followed by biotic and abiotic stresses. Tabular cataloguing reveals and highlights two multifaceted modules that were extensively studied. These belong to miRNA families 156 and 396, orchestrate multifarious aspects of advantageous agronomical traits. Moreover, updated and exhaustive functional aspects of different supplemental miRNA modules that would strengthen rice improvement are also being discussed.


Asunto(s)
MicroARNs , Oryza , MicroARNs/genética , Oryza/genética , Edición Génica , Productos Agrícolas/genética , Sitios de Carácter Cuantitativo
11.
Biomed Mater ; 17(4)2022 06 21.
Artículo en Inglés | MEDLINE | ID: mdl-35679847

RESUMEN

Titanium-based biomedical alloys are susceptible as they are used as a substitute for human bone. In this study, titanium alloy, Ti-5Cu-x%Nb (x= 0, 5, 10, 15) (%wt) was developed by powder metallurgy route. The effect of alloying niobium with Ti-5Cu alloy and its effect on the microstructure, mechanical strength, corrosion resistance, and antibacterial properties have been evaluated. The results show that the sintered alloy has bothα-Ti and Ti2Cu phases. With increasing niobium content in the alloy,ß-Ti was also detected. Additionally, it was found that the micro-hardness and compressive strength of the studied alloy was better than commercially pure titanium (cpTi), while the Young's modulus was lower than cpTi. These properties are highly favorable for using this alloy to replicate the human cortical bone. The alloy was also tested for anticorrosive property in Ringer's solution. The antibacterial activity was also examined forStaphylococcus aureusandEscherichia colibacteria. The alloy showed promising anticorrosive and antibacterial ability.


Asunto(s)
Aleaciones , Niobio , Aleaciones/química , Antibacterianos/química , Corrosión , Humanos , Niobio/química , Titanio/química
12.
Environ Microbiome ; 17(1): 28, 2022 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-35619157

RESUMEN

BACKGROUND: With its adapted microbial diversity, the phyllosphere contributes microbial metagenome to the plant holobiont and modulates a host of ecological functions. Phyllosphere microbiome (hereafter termed phyllomicrobiome) structure and the consequent ecological functions are vulnerable to a host of biotic (Genotypes) and abiotic factors (Environment) which is further compounded by agronomic transactions. However, the ecological forces driving the phyllomicrobiome assemblage and functions are among the most understudied aspects of plant biology. Despite the reports on the occurrence of diverse prokaryotic phyla such as Proteobacteria, Firmicutes, Bacteroides, and Actinobacteria in phyllosphere habitat, the functional characterization leading to their utilization for agricultural sustainability is not yet explored. Currently, the metabarcoding by Next-Generation-Sequencing (mNGS) technique is a widely practised strategy for microbiome investigations. However, the validation of mNGS annotations by culturomics methods is not integrated with the microbiome exploration program. In the present study, we combined the mNGS with culturomics to decipher the core functional phyllomicrobiome of rice genotypes varying for blast disease resistance planted in two agroclimatic zones in India. There is a growing consensus among the various stakeholder of rice farming for an ecofriendly method of disease management. Here, we proposed phyllomicrobiome assisted rice blast management as a novel strategy for rice farming in the future. RESULTS: The tropical "Island Zone" displayed marginally more bacterial diversity than that of the temperate 'Mountain Zone' on the phyllosphere. Principal coordinate analysis indicated converging phyllomicrobiome profiles on rice genotypes sharing the same agroclimatic zone. Interestingly, the rice genotype grown in the contrasting zones displayed divergent phyllomicrobiomes suggestive of the role of environment on phyllomicrobiome assembly. The predominance of phyla such as Proteobacteria, Actinobacteria, and Firmicutes was observed in the phyllosphere irrespective of the genotypes and climatic zones. The core-microbiome analysis revealed an association of Acidovorax, Arthrobacter, Bacillus, Clavibacter, Clostridium, Cronobacter, Curtobacterium, Deinococcus, Erwinia, Exiguobacterium, Hymenobacter, Kineococcus, Klebsiella, Methylobacterium, Methylocella, Microbacterium, Nocardioides, Pantoea, Pedobacter, Pseudomonas, Salmonella, Serratia, Sphingomonas and Streptomyces on phyllosphere. The linear discriminant analysis (LDA) effect size (LEfSe) method revealed distinct bacterial genera in blast-resistant and susceptible genotypes, as well as mountain and island climate zones. SparCC based network analysis of phyllomicrobiome showed complex intra-microbial cooperative or competitive interactions on the rice genotypes. The culturomic validation of mNGS data confirmed the occurrence of Acinetobacter, Aureimonas, Curtobacterium, Enterobacter, Exiguobacterium, Microbacterium, Pantoea, Pseudomonas, and Sphingomonas in the phyllosphere. Strikingly, the contrasting agroclimatic zones showed genetically identical bacterial isolates suggestive of vertical microbiome transmission. The core-phyllobacterial communities showed secreted and volatile compound mediated antifungal activity on M. oryzae. Upon phyllobacterization (a term coined for spraying bacterial cells on the phyllosphere), Acinetobacter, Aureimonas, Pantoea, and Pseudomonas conferred immunocompetence against blast disease. Transcriptional analysis revealed activation of defense genes such as OsPR1.1, OsNPR1, OsPDF2.2, OsFMO, OsPAD4, OsCEBiP, and OsCERK1 in phyllobacterized rice seedlings. CONCLUSIONS: PCoA indicated the key role of agro-climatic zones to drive phyllomicrobiome assembly on the rice genotypes. The mNGS and culturomic methods showed Acinetobacter, Aureimonas, Curtobacterium, Enterobacter, Exiguobacterium, Microbacterium, Pantoea, Pseudomonas, and Sphingomonas as core phyllomicrobiome of rice. Genetically identical Pantoea intercepted on the phyllosphere from the well-separated agroclimatic zones is suggestive of vertical transmission of phyllomicrobiome. The phyllobacterization showed potential for blast disease suppression by direct antibiosis and defense elicitation. Identification of functional core-bacterial communities on the phyllosphere and their co-occurrence dynamics presents an opportunity to devise novel strategies for rice blast management through phyllomicrobiome reengineering in the future.

13.
Indian J Lepr ; 83(4): 201-8, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-22783754

RESUMEN

This study was done by collecting the retrospective data from 1994 to 2009 of patients attending the urban leprosy centre attached to the department of dermatology, STD & leprosy of PGIMER & Dr. R M L Hospital, New Delhi. The data was analysed according to age, sex, type of leprosy, leprosy reactions, deformities and relapse and compared with the national figures by comparison of proportions after taking the national data per 10,000 population. A total of 3659 patients attended our ULC (Urban Leprosy Centre) among which 2741 were male and 945 females (M:F-3:1). 669 patients (18.2%) were children. The data analysed show a gradual decline in new case detection rate with a marginal rise in 2005 and 2008. Percentage of MB cases was falling consistently till 2005 after which it showed an abrupt rise. The incidence of type 1 reaction varied from 21% in 1994 to 10% in 2009 in PB patients and from 6% in 1994 to 8% in 2009 in MB patients. The trend of type 2 reactions in MB patients showed a slow declining trend. MDT completion rate showed an impressive improvement from 56% in 1994 to 90% in 2009. The number of patients revisiting the ULC with features of relapse also showed a decrease in number. The pattern of visible deformities showed an almost constant trend similar to national figures. Improved MDT completion rate helps in reducing the disease transmission, severity, reactions and disabilities.


Asunto(s)
Control de Enfermedades Transmisibles/tendencias , Leprostáticos/uso terapéutico , Lepra/tratamiento farmacológico , Lepra/epidemiología , Adolescente , Distribución por Edad , Niño , Preescolar , Control de Enfermedades Transmisibles/estadística & datos numéricos , Quimioterapia Combinada , Femenino , Humanos , Incidencia , India/epidemiología , Lactante , Lepra/diagnóstico , Lepra/transmisión , Masculino , Recurrencia , Estudios Retrospectivos , Distribución por Sexo , Factores Socioeconómicos , Tasa de Supervivencia , Resultado del Tratamiento , Población Urbana , Adulto Joven
15.
Rice (N Y) ; 12(1): 89, 2019 Dec 04.
Artículo en Inglés | MEDLINE | ID: mdl-31802312

RESUMEN

Half of the global human population is dependent on rice as a staple food crop and more than 25% increase in rice productivity is required to feed the global population by 2030. With increase in irrigation, global warming and rising sea level, rising salinity has become one of the major challenges to enhance the rice productivity. Since the loss on this account is to the tune of US$12 billion per annum, it necessitates the global attention. In the era of technological advancement, substantial progress has been made on phenomics and genomics data generation but reaping benefit of this in rice salinity variety development in terms of cost, time and precision requires their harmonization. There is hardly any comprehensive holistic review for such combined approach. Present review describes classical salinity phenotyping approaches having morphological, physiological and biochemical components. It also gives a detailed account of invasive and non-invasive approaches of phenomic data generation and utilization. Classical work of rice salinity QLTs mapping in the form of chromosomal atlas has been updated. This review describes how QTLs can be further dissected into QTN by GWAS and transcriptomic approaches. Opportunities and progress made by transgenic, genome editing, metagenomics approaches in combating rice salinity problems are discussed. Major aim of this review is to provide a comprehensive over-view of hitherto progress made in rice salinity tolerance research which is required to understand bridging of phenotype based breeding with molecular breeding. This review is expected to assist rice breeders in their endeavours by fetching greater harmonization of technological advances in phenomics and genomics for better pragmatic approach having practical perspective.

16.
Indian Dermatol Online J ; 9(6): 426-431, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-30505784

RESUMEN

BACKGROUND: Itraconazole (ITZ) is widely used for cutaneous and systemic mycoses. Its bioavailability is inconsistent and shows interindividual variations. The quality of ITZ pellets is an important factor determining its absorption profile and thereby the therapeutic effect. Analysis of morphometric characteristics is a surrogate method to determine the same. Pellet number and size are the most important parameters in this regard. AIM: We aimed to delineate few low-cost brands, the assessed variables of which fell within the formulated criteria. MATERIALS AND METHODS: In all, 22 (100 mg) formulations of ITZ were included. The pellet number was calculated manually and pellet size was determined using a dermoscope with an inbuilt measurement tool. Furthermore, size variation with respect to the innovator US Food and Drug Administration (FDA)-approved brand was determined. RESULTS: There is a large variation in pellet number and average pellet size among different brands. Pellet number ranged from 121 to 820 and average size from 959 to 1845 µm. Few brands had dummy pellets and loose powder within the capsule. Two brands within the price range of less than Rs. 20 per capsule fulfilled the three formulated criteria: of a good pellet count, small pellet size, and low size variation. Two other brands also satisfied these criteria but were priced between Rs. 20 and 30 per capsule. The innovator US FDA-approved brand had the highest number of pellets and minimum size variation but is the costliest of all assessed brands. LIMITATIONS OF THE STUDY: We cannot comment on inter-batch variation as ours was a one-point assessment. Advanced techniques such as scanning electron microscopy and drug release profile, which would have given further useful information on pellet quality, were beyond our scope. CONCLUSION: There is marked variation in the assessed characteristics of ITZ formulations. These morphometric characteristics may have a significant bearing on the quality of ITZ. And thus analysis of these can help clinicians make an informed decision in choosing an ITZ formulation to achieve optimal efficacy.

17.
Indian Dermatol Online J ; 9(1): 50-52, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29441300

RESUMEN

Cutaneous mucinoses refer to disorders with abnormal accumulation of mucin in the skin. Mucin is an amorphous material that is a part of the extracellular matrix in dermis. Cutaneous mucinoses could be primary or secondary. The latter is associated with systemic disorders such as autoimmune diseases, diabetes mellitus, paraproteinemia, or altered thyroid function. Here, we report an adult female patient with trauma-induced cutaneous focal nodular mucinoses on left-sided scapular region. Histology showed replacement of collagen bundles by mucinous deposits in superficial and mid-dermis. Mucinous substance was present in peri-eccrine location on Alcian blue staining.

18.
Indian Pediatr ; 44(4): 257-62, 2007 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-17468520

RESUMEN

OBJECTIVE: To evaluate serum leptin levels in obese Indian children and its correlation to anthropometric and biochemical parameters. DESIGN: Cohort study. SETTING: Referral tertiary hospital. METHODOLOGY: Leptin levels were measured in 36 children (26 boys, age 1.5 to 15 years) and 37 adults (21 men, age 25 to 69 years) with obesity and 29 normal weight controls (15 children and 14 adults). RESULTS: Leptin levels were higher than controls in obese children (19.4 +/- 6.4 ng/mL against 5.4 +/- 1.7 ng/mL, p = 0.0001) and obese adults (18.9 +/- 6.4 ng/mL against 7.8 +/- 5.6 ng/mL, p = 0.0001). Leptin levels were higher than males in obese girls (23.5 +/- 1.7 ng/mL against 18.0 +/-7.6 ng/mL, p = 0.040) and women (21.3 +/- 4.4 ng/mL against 15.8 +/- 7.4 ng/mL). Leptin levels correlated with body mass index, waist circumference and waist to-hip ratio. A positive correlation was observed between serum leptin and cholesterol, triglycerides and LDL-cholesterol. No correlation was seen with fasting blood glucose and HDL-cholesterol. CONCLUSIONS: Leptin levels correlate significantly with anthropometric and laboratory parameters in obese children. There is a need for further studies on the role of leptin in childhood obesity and metabolic syndrome.


Asunto(s)
Leptina/sangre , Obesidad/metabolismo , Adolescente , Adulto , Anciano , Antropometría , Índice de Masa Corporal , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Humanos , India , Lactante , Masculino , Síndrome Metabólico , Persona de Mediana Edad , Obesidad/fisiopatología , Factores de Riesgo
19.
Indian J Med Sci ; 61(2): 97-101, 2007 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-17259689

RESUMEN

Leishmaniasis, a globally prevalent parasitic disease, occurs in three forms, viz, visceral, cutaneous and mucocutaneous. It is transmitted by female Phlebotomus sandflies. Human immunodeficiency virus (HIV) infection is increasing worldwide and several reports indicate a rising trend of VL / HIV co-infection, modifying the traditional anthroponotic pattern of VL transmission. India is one of the countries having the largest burden of leishmaniasis; nevertheless, there are very few HIV / leishmania co-infection cases reported so far. We report a 35-year-old homemaker infected with the human immunodeficiency virus; she presented with an oral ulcer. The investigations carried out on her revealed that she was afflicted by visceral leishmaniasis and the oral ulceration was a part of the same. This is only the second such case from the Indian subcontinent and more significantly from a non-endemic area.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/complicaciones , VIH-1 , Leishmaniasis Visceral/etiología , Úlceras Bucales/etiología , Adulto , Femenino , Humanos , Leishmaniasis Visceral/patología , Úlceras Bucales/patología
20.
Indian Dermatol Online J ; 8(6): 482-484, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29204395

RESUMEN

We report a case of mutilating keratoderma with alopecia and keratoses follicularis spinulosa decalvans (KFSD), which was initially diagnosed as ectodermal dysplasia and Olmsted syndrome but was revisited as a case of X-linked Olmsted (XLO) syndrome. We focus on this uncommon entity (XLO) to highlight the differentials of alopecia with palmoplantar keratoderma.

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