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3.
Funct Plant Biol ; 50(6): 482-496, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37045602

RESUMO

Bacteria that enhance plant growth and development and are found in the vicinity of roots are referred to as plant growth-promoting rhizobacteria. Some beneficial bacteria help plant tolerance to many hazardous chemical elements. In this context, Cupriavidus basilensis , Novosphingobium humi , Bacillus zanthoxyli , Bacillus sp., Paenibacillus alvei , Ancylobacter aquaticus and Ralstonia syzygii metal-tolerant rhizospheric bacteria were isolated from rhizospheric soil associated with Bacopa monnieri . The beneficial effects of rhizospheric bacteria on B. monnieri plant physiology and biochemical responses were investigated under pot conditions at two levels (100µM and 500µM) of CuSO4 or FeCl3 . N. humi , A. aquaticus and R. syzygii bacterial strains were associated with significantly increased height and biomass under normal and stress conditions. An assay for indole acetic acid in isolated rhizospheric bacteria found differential secretion except Bacillus zanthoxyli . Bacoside A is a major phytocompound in B. monnieri with medicinal value; maximum induction was observed in the R. syzygii treatment. High concentration of copper and iron salts negatively influenced height, biomass and photosynthetic pigments; however N. humi , A. aquaticus , Bacilllus sp. and R. syzygii beneficial bacterial helped plants under stress conditions. Moreover, a significant enhancement in chlorophyll a and b was noticed in C. basilensis , B. zanthoxyli , Bacilllus sp., P. alvei and R. syzygii treatments, without much influence on carotenoid levels. Therefore, the present study emphasises the importance of isolating plant growth-promoting rhizobacteria for use in bacopa plants exposed to metals such as copper and iron in soil.


Assuntos
Bacopa , Gallionellaceae , Cobre/farmacologia , Ferro/farmacologia , Bacopa/química , Clorofila A/farmacologia , Bactérias , Solo
8.
Indian Dermatol Online J ; 12(6): 879-887, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34934726

RESUMO

INTRODUCTION: Currently, various destructive and ablative treatment options are conventionally used for warts, but all of them are limited in some form by their adverse effects, high recurrences, suboptimal effectiveness, and the need to treat every wart. Lately, immunotherapy has emerged as a safe treatment relying on biological substances that modulate the immune system to achieve disease control. AIMS AND OBJECTIVES: We aimed at conducting a placebo-controlled study to compare the rate of efficacy of intralesional MMR vaccine with vitamin D3 in the management of recalcitrant extragenital warts in immune-competent adults. Follow-up was done at third and sixth month. MATERIALS AND METHODS: Patients were divided into three groups, namely, group A, B, and C. Groups A, B, and C received intralesional MMR vaccine, vitamin D3 and normal saline, respectively, in the largest wart. The injections were repeated every 2 weeks, for a maximum of four injections. RESULTS: Among injected warts, in group A, complete clearance was seen in 29 (87.8%) patients, partial clearance in two (6.1%) and no response in two (6.1%) patients. In group B, 24 (77.4%) patients, five (16.1%) patients, and two (6.5%) patients showed signs of complete, partial, and no clearance, respectively, in injected warts. Complete response in distant warts was seen in 25 (75.7%) patients in group A and 20 (64.5%) patients in group B. There was no statistically significant difference between responses of the two groups. In group C, only three (12.5%) patients had complete clearance in injected warts, and none in distant warts. Recurrence was seen in two (6.4%) patients, each in group B and C. However, for management of verruca plana MMR was found to be superior to vitamin D3. LIMITATIONS: Our study was limited by a small sample size, absence of immunological analysis, and limited follow-up period. CONCLUSION: MMR vaccine and vitamin D3 are equally effective and safe treatment option for multiple, recalcitrant warts, as well as warts on difficult to treat sites with minimal recurrence.

9.
Dermatol Pract Concept ; 11(2): e2021032, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33954015

RESUMO

BACKGROUND: Leprosy, an insidious infectious granulomatous disease, is diagnosed traditionally through clinical examination coupled with skin smears and histopathology. It has myriad clinical presentations that pose diagnostic challenges. Lately, dermoscopy has emerged as a rapid, noninvasive diagnostic modality for many dermatoses. OBJECTIVES: We evaluated the dermoscopic findings of various manifestations of leprosy and correlated them with clinical and histopathological features. METHODS: This prospective, cross-sectional study was conducted in our skin outpatient department for a period of 1 year. Patients newly diagnosed as having leprosy or those undergoing leprosy treatment for less than 6 months were included. The most representative lesion was dermoscopically evaluated and later biopsied. RESULTS: We included 73 patients in the study. Results indicated an obvious correlation between dermoscopic findings and histopathology. We noted orangish yellow and white structureless areas, steadily throughout the spectrum, depicting dermal granuloma. Additionally, we observed focal vascular structures such as branching, linear, and crown vessels that result from the pressure of granuloma pushing the dilated vessels upwards. The relative absence of skin appendages aided in differentiating leprosy from other granulomatous disorders. Novel findings of our study were the detection of a branch-like pattern of clofazimine-induced pigmentation on dermoscopy and orange globules on onychoscopy. Other unique findings included violaceous structureless areas, characteristic large telangiectatic vessels, follicular plugging, star-shaped silvery-white scaling, and white globules in type 1 reaction; white shiny steaks were observed in patients with borderline lepromatous leprosy, and central white dots and keratotic plugs were observed in patients with histoid leprosy. CONCLUSIONS: Dermoscopy, as a noninvasive modality, could aid in the quick diagnosis of leprosy and should be used as a handy tool to complement other investigative tools for this disease.

10.
Indian J Dermatol ; 66(1): 44-48, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33911292

RESUMO

BACKGROUND: Extra-genital warts (EGWs) affect 7-10% of population. Even though a plethora of studies have been conducted to assess the impact of genital warts (GWs) showing a significant impact on the quality of life but surprisingly, barely any data has been collected on the impact of EGWs on quality of life. AIMS AND OBJECTIVE: This cross-sectional study aimed at comparing the magnitude of EGWs on health-related quality of life and various variables with that of GWs. PATIENTS AND METHODS: The study consisted of two groups of immunocompetent adults, each with 100 patients aged 18 years or above, attending the skin outpatient department at our tertiary center between April 2018 and March 2019 and consented to participate. Group A consisted of patients with EGWs and group B comprised of patients with GWs. All patients were asked to fulfill the validated Hindi hard copy of the Dermatology Life Quality Index (DLQI) questionnaire. RESULTS: The mean DLQI score of patients with EGWs was 8.73 ± 0.84 and that of patients with GWs was 5.83 ± 0.83 (P = 0.026). In group A, those affected the most were patients with warts on multiple exposed sites (mean DLQI score of 14), followed by warts on feet (mean DLQI score of 10.69), followed by warts on hands (DLQI score of 9.12), and facial warts (DLQI score of 6.80). Patients with a prior history of failed treatment and/or a longer duration of illness had a higher level of dissatisfaction. To the best of our knowledge, no such study has been conducted in the past in our country. CONCLUSIONS: EGWs inflict a severe negative impact on the quality of life. Owing to its notorious persistence and recurrence, healthcare professionals must educate patients on how to prevent the spread and recurrence, discuss details of available treatment modalities while keeping in view the psychological and sociological impact.

12.
Indian Dermatol Online J ; 11(6): 959-964, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33344347

RESUMO

INTRODUCTION: Leprosy or Hansen's disease poses a drastic impact on the quality of life in affected patients even after successful completion of treatment. The involvement of the endocrine system in leprosy is usually insidious, silent, and under-reported, especially the testicular dysfunction. AIMS AND OBJECTIVES: The present study was aimed at evaluating the abnormalities of the primary testicular hormone testosterone and the gonadotrophins LH and FSH in male patients affected with lepromatous leprosy and assessing the impact of the disease on quality of life (QOL). MATERIALS AND METHODS: The study included 43 married male patients diagnosed with lepromatous leprosy. Careful history taking and examination for symptoms of testicular dysfunction were done. Serum concentrations of total testosterone, FSH, and LH were noted. The QOL was evaluated using the WHO Quality of Life-BREF (WHOQoL-BREF). RESULTS: The most common clinical manifestation of testicular dysfunction was reduced or loss of libido reported in 12 (27.9%) patients followed by gynaecomastia in 7 (16.3%). Ultrasonographic (USG) analysis revealed reduced testicular volume in 31 (72.1%) patients, and average testicular volume was 11.9 ± 4.9 mL each. Seventeen (39.5%) patients had low serum testosterone levels, 9 (20.9%) had high serum FSH level, and 11 (25.6%) high LH levels. There was a significant negative correlation between testosterone level and FSH as well as LH. There was also a significantly positive correlation between testicular volume and testosterone level. Symptomatic patients with gynaecomastia/gynaecothelia had higher hormonal derangement than those who had other symptoms. On QOL, most patients scored lowest on the domain of "social relationships" (including sexual wellbeing) followed by "psychological health". CONCLUSION: We found a high rate of USG diagnosed testicular atrophy in lepromatous leprosy patients. Therefore, every leprosy patient should be thoroughly examined clinically to rule out features of testicular dysfunction. Testicular function tests should be routinely carried out in all leprosy patients to arrive at an early diagnosis. Leprosy is found to affect all domains of a patient's quality of life.

14.
Int J Trichology ; 12(2): 79-81, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32684680

RESUMO

Ectopic cilia, or lash follicles situated over abnormal sites, are an extremely rare entity. Here, we report the case of a 6-year-old-boy who presented with ectopic cilia over the left upper eyelid along with a positive family history. Dermoscopy revealed discreet terminal hair emerging from the individual hair follicles surmounted over a diffuse structureless whitish-yellow zone and a few vellus hairs in the surrounding normal skin. These hairs, on histopathological examination, had multiple pilosebaceous follicular units embedded in a desmoplastic stroma with multiple eccrine sweat glands. Other incidental findings included lichen nitidus and myopia.

15.
Pediatr Dermatol ; 37(5): 853-859, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32681688

RESUMO

BACKGROUND: Intralesional vitamin D3 has recently emerged as a new treatment for cutaneous warts. The use of the measles, mumps, and rubella (MMR) vaccine for this purpose is an established modality. However, relevant data on the efficacy of either the MMR vaccine or vitamin D3 as immunotherapy for cutaneous warts in the pediatric population are limited. OBJECTIVES: To compare the efficacy and safety of intralesional injections of MMR vaccine to intralesional injections of vitamin D3 in children aged 8-16 years with multiple warts. METHODS: A total of 74 children were randomly allocated into two groups. Group A patients received intralesional MMR vaccine into the largest wart, and group B received intralesional vitamin D3 into the largest wart. The injections were repeated every 4 weeks until clearance or for a maximum of three treatments. After the last injection, children were followed up every 2 weeks for 3 months, and at the sixth month, a final clinical assessment was conducted. RESULTS: Of 74 children, 60 completed the study, with 30 children in each group. Complete clearance of the injected wart was observed in 26 (86.67%) patients in the MMR group (group A) and 23 (76.7%) patients in the vitamin D3 group (group B). Distant warts cleared in 23 (76.7%) patients in group A compared to 20 (66.6%) patients in group B. There was no significant difference between groups. No recurrence was seen in group A, whereas two (6.6%) children in group B exhibited recurrence in the ensuing 6-month follow-up. The most common adverse events were injection site pain and swelling. CONCLUSION: Both intralesional MMR and vitamin D3 are safe, generally well-tolerated, and equally effective in children for the treatment of cutaneous warts.


Assuntos
Sarampo , Caxumba , Vacinas , Verrugas , Adolescente , Criança , Colecalciferol/uso terapêutico , Humanos , Injeções Intralesionais , Vacina contra Sarampo-Caxumba-Rubéola/efeitos adversos , Recidiva Local de Neoplasia , Vacina contra Rubéola/uso terapêutico , Vacinas/uso terapêutico , Verrugas/tratamento farmacológico
17.
Int J Trichology ; 11(3): 134-137, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31360044

RESUMO

White piedra also known as trichomycosis nodularis or trichomycosis nodosa is a superficial fungal infection of the hair shaft caused by Trichosporon asahii. We are reporting a case of white piedra in a female for the rarity of such occurrence.

18.
Microb Ecol ; 78(4): 914-926, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31001657

RESUMO

Coleus forskohlii is a perennial medicinal shrub cultivated mainly for its forskolin content. The plant has been used since ancient times in ayurvedic traditional medicines for the treatment of hypertension, glaucoma, asthma, congestive heart failures, obesity, and cancer. Use of endophytic microorganisms presents a special interest for the development of value-added bioactive compounds through agriculture. Limited investigations have been undertaken on in planta enhancement of forskolin content using endophytic fungus in sustainable agriculture. Here we report specific roles of three fungal endophytes, Fusarium redolens (RF1), Phialemoniopsis cornearis (SF1), and Macrophomina pseudophaseolina (SF2), functionally acting as plant probiotic fungus, regulating secondary metabolite (forskolin) biosynthesis in C. forskohlii. The root endophyte, RF1, and shoot endophytes, SF1 and SF2, were found to enhance forskolin content by 52 to 88% in pot and 60 to 84% in field experiments as compared to uninoculated control plants. The three endophytes also enhanced total biomass owing to plant growth promoting properties. The expression of diterpene synthases (CfTPSs) like CfTPS1, CfTPS2, CfTPS3, and CfTPS4 were significantly upregulated in endophyte-treated C. forskohlii plants. Elevated expression of key diterpene synthases (CfTPS2) in the forskolin biosynthesis pathway, exclusively present in the root cork of C. forskohlii, was observed following SF2 endophyte treatment. Furthermore, endophyte treatments conferred a variety of antagonistic activity against nematode galls (80%) and plant pathogens like Fusarium oxysporum, Colletotricum gloeosporioides, and Sclerotium rolfsii. RF1 and SF1 fungal endophytes showed positive for IAA production; however, SF1 also indicated phosphate solubilization activity. Overall, the qualitative and quantitative improvement of in planta forskolin enhancement represents an area of high commercial interest, and hence, our work focused on novel insights for the application of three fungal endophytes for in planta enhancement of forskolin content for C. forskohlii cultivation by a sustainable approach.


Assuntos
Ascomicetos/fisiologia , Colforsina/metabolismo , Diterpenos/metabolismo , Fusarium/fisiologia , Plectranthus/metabolismo , Plectranthus/microbiologia , Endófitos , Hypocreales/fisiologia , Raízes de Plantas/metabolismo , Xylariales/fisiologia
19.
Front Hum Neurosci ; 13: 77, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31024274

RESUMO

Freud proposes that in unconscious processing, logical connections are also (heavily) based upon phonological similarities. Repressed concerns, for example, would also be expressed by way of phonologic ambiguity. In order to investigate a possible unconscious influence of phonological similarity, 31 participants were submitted to a tachistoscopic subliminal priming experiment, with prime and target presented at 1 ms. In the experimental condition, the prime and one of the 2 targets were phonological reversed forms of each other, though graphemically dissimilar (e.g., "nice" and "sign"); in the control condition the targets were pseudo-randomly attributed to primes to which they don't belong. The experimental task was to "blindly" pick the choice most similar to the prime. ERPs were measured with a focus on the N320, which is known to react selectively to phonological mismatch in supraliminal visual word presentations. The N320 amplitude-effects at the electrodes on the midline and at the left of the brain significantly predicted the participants' net behavioral choices more than half a second later, while their subjective experience is one of arbitrariness. Moreover, the social desirability score (SDS) significantly correlates with both the behavioral and the N320 brain responses of the participants. It is proposed that in participants with low SDS the phonological target induces an expected reduction of N320 and this increases their probability to pick this target. In contrast, high defensive participants have a perplexed brain reaction upon the phonological target, with a negatively peaking N320 as compared to control and this leads them to avoid this target more often. Social desirability, which is understood as reflecting defensiveness, might also manifest itself as a defense against the (energy-consuming) ambiguity of language. The specificity of this study is that all of this is happening totally out of awareness and at the level of very elementary linguistic distinctions.

20.
Mol Biol Rep ; 46(2): 1895-1908, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30706360

RESUMO

In the present study, root cell suspension cultures of W. somnifera were elicited with mycelial extract (1% w/v) and culture filtrate (5% v/v) of their native endophytic fungus Aspergillus terreus 2aWF in shake flask. Culture filtrate of A. terreus 2aWF significantly elicits withanolide A at 6H (12.20 ± 0.52 µg/g FCB). However, with A. terreus 2aWF mycelial extract, withanolide A content was higher at 24H (10.29 µg/g FCB). Withanolide A content was maximum with salicylic acid (0.1 mM) treatment at 24H (8.3 ± 0.20 µg/g FCB). Further, expression analysis of withanolide pathway genes, hydrogen peroxide production, and lipid peroxidation was carried out after 48H of elicitation with 2aWF mycelial extract and culture filtrate. The expression levels of withanolides biosynthetic pathway genes, viz. HMGR, DXR, FPPS, SQS, SQE, CAS, SMT1, STE1 and CYP710A1 were quantified by real time PCR at 48H of elicitation. In all the treatments, the expression levels of key genes were significantly upregulated as compared to untreated suspension cells. Hydrogen peroxide was noticeably enhanced in SA, mycelia extract and culture filtrate, at 20% (115 ± 4.40 nM/g FCB), 42% (137.5 ± 3.62 nM/g FCB), and 27% (122.8 ± 1.25 nM/g FCB) respectively; however, lipid peroxidation was 0.288 ± 0.014, 0.305 ± 0.041 and 0.253 ± 0.007 (µM/gm FCB) respectively, higher than the control (0.201 ± 0.007 µM/gm FCB).


Assuntos
Aspergillus/metabolismo , Vitanolídeos/isolamento & purificação , Aspergillus/fisiologia , Vias Biossintéticas , Técnicas de Cultura de Células , Cromatografia Líquida de Alta Pressão/métodos , Endófitos , Fungos , Peróxido de Hidrogênio/química , Raízes de Plantas/metabolismo , Ácido Salicílico/metabolismo , Withania/genética , Withania/metabolismo , Vitanolídeos/metabolismo
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