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68Ga‑DOTANOC PET/CT for Screening and Surveillance of Von Hippel‑Lindau (VHL) disease
Shamim Ahmed Shamim,Geetanjali Arora,Naresh Kumar,Jhangir Hussain,Shreya Datta Gupta,Arun Raj ST,Kritin Shankar,Alpesh Goyal,Rajesh Khadgawat,Sambit Sagar,Chandrasekhar Bal 대한핵의학회 2023 핵의학 분자영상 Vol.57 No.5
Purpose Hereditary tumor syndrome Von Hippel-Lindau (VHL) disease is characterized by various benign and malignanttumors that are known to express somatostatin receptors (SSTR). We evaluated the role of 68Ga-DOTANOC PET/CT scan inpatients with positive germline mutation of the VHL gene, presented initially or on follow-up, for the detection of recurrentor synchronous/metachronous lesions. Methods Fourteen patients (8 males; 6 females) with mean age 30 ± 9.86 years were retrospectively analyzed, were testedpositive for VHL on gene dosage analysis, and underwent 68 Ga-DOTANOC PET/CT scan for disease evaluation. The numberand site of lesions were determined. The tracer uptake was analyzed semi-quantitatively by calculating the maximumstandardized uptake values (SUVmax) of lesion. Results Four of the 14 patients underwent scan for initial diagnosis as baseline, 6 patients for post-therapy disease status,and 4 patients for initial diagnosis as well as follow-up evaluation of the disease. A total of 67 lesions were detected in 14patients. The sites of lesions were cerebellar/vertebral/spinal (17; mean SUVmax = 7.85); pancreatic neuroendocrine tumor(NET) (11; mean SUVmax = 20.64); retina (3; mean SUVmax = 10.46); pheochromocytoma (10; mean SUVmax = 16.32);paragangliomas (3; mean SUVmax = 10.65); pancreatic cyst (9; mean SUVmax = 2.54); and renal cyst (8; mean SUVmax= 1.56) and miscellaneous lesions constituted 6 lesions. Conclusion Our results show that 68 Ga-DOTANOC PET/CT may be a useful modality for screening and follow-up of associatedtumors in patients with germline gene mutation for VHL. It can be used as a one-stop imaging modality for VHL patientsand may substitute for separate radiological investigations, making it more convenient for patients in terms of time and cost.
( Shamim Ahmed ),김기윤 ( Kiyoon Kim ),( Md Abdul Halim ),( Aritra Roy Choudhury ),사동민 ( Tongmin Sa ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
Global climate change (GCC) has the potential of causing sea-level rise (SLR), increasing coastal economic activities and the flow of freshwater from rivers into the sea. SLR and precipitation changes will have impact on soil salinization and agriculture production. Salt affected soils are distributed in 120 countries covering 953 million hectare and reduced productivity to 7-8% at the global scale. Of the current 230 million ha of irrigated land, 45 million ha are salt-affected (19.5%) and of the 1,500 million ha under dry land agriculture, 32 million are salt-affected to varying degrees (2.1%). In SAARC (South Asian Association for Regional Cooperation) region, salinity prevails as a major issue, for instance, in Bangladesh, the 53% of coastal region covers almost 29,000 km<sup>2</sup> or about 20% of land area and more than 30% of the cultivable lands. Whereas 6.72, 6.70 and 0.54 million hectare agricultural land are inundated by salinity in India, Pakistan and Sri-Lanka consequently, which is 7% of total agricultural land in those countries. Microorganisms can play a significant role in this respect, such as tolerance to saline conditions, genetic diversity and synthesis of compatible solutes, production of plant growth promoting hormones, bio-control potential, and interaction with crop plants trends to reduce the negative impact of global warming. Moreover, biofertilizers can make available a wide range of nutrients to plants and increase soil organic matter. Understanding endophytic interactions are the least studied out of other microbe-plant interactions. So that, studies on plant-associated bacteria, their colonization inside the host plant and survival mechanism with competence are of major importance. Endophytic bacterial and their colonizations in host plant can enhance plant growth and improve the nutrition of plants through nitrogen fixation, phosphorus solubolization, enzymatic activities, etc. Hypothesis may establish that, microbial inoculant can be survive and abundantly colonize inside the plant from rhizosphere to root, move on xylem vassel through vegetative parts of the plant via vascular connections from the maternal plant and transmit them on next generation seed containing essential PGP characteristics.
SELF-DETERMINED MOTIVATION, MINDFULNESS, AND GREEN CONSUMPTION BEHAVIOR
Shamim Ahmed Khan,Soo Yeong Ewe,Md. Yunus Ali,Motoki Watabe 글로벌지식마케팅경영학회 2023 Global Marketing Conference Vol.2023 No.07
Green consumption behavior (GCB) is desirable for a better world. The trend of GCB is expected to rise in the coming years. As such, it is imperative to understand the enablers of GCB. A significant majority of the investigated drivers of GCB are consumer-level factors. Studies focusing on the consumer-level showed that factors such as values, intentions, and personal norms could influence GCB. However, it is argued that compared to values or intentions, self-determined motivation can better predict GCB. The effect of self-determined motivation types (i.e., autonomous and controlled motivation) on GCB remains unclear due to prevailing gaps and contradictory findings. Furthermore, it is posited that people exhibit more self-determined behavior if they have strong self-awareness. Higher self-awareness can be achieved through mindfulness; therefore, differences in mindfulness level could affect the motivation-behavior relationship.
Ahmed Shamim,Heo Tae-Young,Roy Choudhury Aritra,Walitang Denver I.,Choi Jeongyun,Sa Tongmin 한국응용생명화학회 2021 Applied Biological Chemistry (Appl Biol Chem) Vol.64 No.5
Salinization of agricultural lands, particularly rice paddies, results in the drastic decline of crop yields. Soil salinization impacts the plant physiology by inducing salt stress which may leads to osmotic stress, ionic stress and water-related nutrient imbalance. These imbalances necessitate the need for plants to produce osmolytes including proline and glycine betaine. This study aimed to elucidate the dynamic changes in proline and glycine betaine accumulation modulated by the inoculation of Brevibacterium linens RS16 in salt-sensitive and moderately salt-tolerant rice plants under salt stress conditions. This study showed the interaction of four major factors including rice genotypes with differing tolerance to salt stress, length of exposure to salt stress, level of salt stress and effects of inoculation. Salt stress resulted in significant reduction in plant growth parameters with the salt-sensitive rice genotype (IR29) having a more significant growth reduction. Both the salt-sensitive and salt-tolerant rice genotypes increased in total proline and glycine betaine accumulation at 3 days and 10 days after subjecting under 50 mM and 150 mM salt stress conditions. A significant increase in proline and glycine betaine was observed in the salt-sensitive genotype after 10 days under 50 mM and 150 mM salt stress conditions. Inoculation of the rice genotypes with B. linens RS16 resulted in the improvement of plant growth parameters in both rice genotypes, and total proline and glycine betaine accumulation, especially in IR29. This study showed that proline and glycine betaine are compatible osmolytes of rice under salt stress, and that inoculation of rice genotypes with B. linens RS16 mediated salt tolerance through improvement of plant growth parameters and proline and glycine betaine accumulation in rice plants.
Shamim Ahmed Khan,Mohammad Zainuddin,Soo Yeong Ewe,Md. Yunus Ali,Motoki Watabe 글로벌지식마케팅경영학회 2023 Global Marketing Conference Vol.2023 No.07
The application of mindfulness is increasing significantly in different areas of business studies. However, identifying how mindfulness research has evolved and the major research themes, specifically within the business studies domain, remains lacking. This study unveils the intellectual structure of mindfulness research in business studies. Using citation and co-citation analysis, the study identifies the most influential articles, annual growth, and three key research clusters constituting the intellectual foundation.
Hira, Shamim Ahmed,Nallal, Muthuchamy,Park, Kang Hyun Elsevier 2019 Sensors and actuators. B, Chemical Vol.298 No.-
<P><B>Abstract</B></P> <P>In this study, we utilized functionalized metal organic frameworks (MOFs) as a host matrix to embed silver and palladium (AgPd) bimetallic nanoparticles. The physicochemical properties of the as-synthesized materials were characterized Via UV, FT-IR, XRD, SEM, TEM, XPS, BET and TGA analysis. The as-synthesized materials presented excellent activities toward the electrochemical detection of 4-nitrophenol and its reduction by NaBH<SUB>4</SUB> under ambient conditions. The constructed sensor displayed selective and sensitive determination of 4-NP in the linear concentration range 100–370 μM with a limit of detection of Σ32 nM. Moreover, because of its high specific surface area, high conductivity, and fast charge transfer ability, the sensor displayed good electrocatalytic activity. Moreover, it exhibited excellent selectivity toward 4-NP in the presence of common interfering species. The synthesized catalyst exhibited good catalytic activity for the reduction of 4-NP. It was reusable for five consecutive cycles without a significant loss in its catalytic activity. The applicability of the constructed sensor was explored via the detection of 4-NP in tap water samples at a recovery of ∼100.97%.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Fabrication of PdAg NPs infused metal organic framework (AgPd@UiO-66-NH<SUB>2</SUB>). </LI> <LI> The material exhibits low detection limit and high sensitivity in 4-NP detection. </LI> <LI> It provides good catalytic activity in 4-NP reduction with good recyclability. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Mia Shamim,Ahmed Nasar Uddin,Islam Mohammad Zahidul,Rashad Md. Mainul Islam,Islam Md. Monirul,Zaman A. K. M. Mostafa 한국작물학회 2022 Journal of crop science and biotechnology Vol.25 No.2
Understanding genetic diversity of rice helps to improve its yield. Although many landraces of rice are grown in the coastal area of Bangladesh, their diversity has not been studied. Here, we report a comparison of 163 landraces of T. Aman rice. Data on diferent agronomic characters were collected while analysis of variance (ANOVA), Pearson’s regression, principal component analysis (PCA) and cluster analysis were performed. In addition, yield of local landraces was compared to modern cultivars using meta-analysis. Our results showed that the yield of local rice of this study was higher than both HYV and local rice grown in the farmers’ feld. Furthermore, landraces with longer plant height and heavier grain provided signifcantly higher yield. According to PCA, the highest contributing variables were the number of tillers per hill and plant height. Canonical variate analysis revealed that plant height and grain length–breadth ratio were major contributors in creating divergence. In the generalized distance (D2 ) and cluster analysis, landraces were split into fve diverse clusters with many sub-clusters. Considering overall diversity pattern, it is evident that a good number of T. Aman rice landraces can be used in future improvement programs for assembling many benefcial traits and increasing yield of rice.