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  1. Article: Oxidative addition of N-aminophthalimide to 3,4-dihydro-2H-thiopyrans, their S-oxides, and S,S-dioxides

    Merkulova, Ekaterina A. / Kolobov, Aleksey V. / Kuznetsov, Mikhail A. / Spiridonova, Dar'ya V. / Pankova, Alena S.

    Tetrahedron letters. 2022 Mar. 30, v. 94

    2022  

    Abstract: ... obtained via addition of nitrene to the CC bond of thiopyran S,S-dioxide. For an unoxidized thiopyran, only ... en(phthaloyl)hydrazine resulted after cleavage of the initially formed aziridine. S-Oxide trapped ...

    Abstract Selectivity of nitrene addition to the CCS fragment depends on the oxidative state of the sulfur atom as has been exemplified on various derivatives of 3,4-dihydro-2H-thiopyran under conditions of oxidative aminoaziridination. A unique structure with 2-thia-7-azabicyclo[4.1.0]heptane-2,2-dioxide core was obtained via addition of nitrene to the CC bond of thiopyran S,S-dioxide. For an unoxidized thiopyran, only en(phthaloyl)hydrazine resulted after cleavage of the initially formed aziridine. S-Oxide trapped the nitrene by the sulfur atom to form the sulfoximine leaving the double bond unaffected.
    Keywords ethyleneimine ; hydrazine ; sulfur
    Language English
    Dates of publication 2022-0330
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 204287-3
    ISSN 1873-3581 ; 0040-4039
    ISSN (online) 1873-3581
    ISSN 0040-4039
    DOI 10.1016/j.tetlet.2022.153715
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Outcome predictors of patients who underwent limb amputation/s following trauma at a level I trauma center in North India.

    Dar, Parvez Mohi Ud Din / Mir, Nida / Katiyar, Anand Kumar / Sati, Hem Chandra / Priyadarshini, Pratyusha / Alam, Junaid / Kumar, Subodh / Gupta, Amit / Sagar, Sushma

    European journal of trauma and emergency surgery : official publication of the European Trauma Society

    2023  Volume 50, Issue 1, Page(s) 233–242

    Abstract: Purpose: Limb amputation is one of the oldest medical operations, dating back over 2500 years to Hippocrates' time. In developing countries like India, most of the patients are young, and trauma is the primary cause of limb amputation. The objectives of ...

    Abstract Purpose: Limb amputation is one of the oldest medical operations, dating back over 2500 years to Hippocrates' time. In developing countries like India, most of the patients are young, and trauma is the primary cause of limb amputation. The objectives of this study were to investigate the factors that can predict the outcome of patients who underwent upper or lower limb amputations.
    Materials and methods: This was a retrospective analysis of the prospectively collected data of patients who underwent limb amputations from January 2015 to December 2019.
    Results: From January 2015 to December 2019, 547 patients underwent limb amputations. Males predominated (86%). Road traffic injuries (RTI) were the most common (323, 59%) mechanism of injury. Hemorrhagic shock was present in 125 (22.9%) patients. Above-knee amputation was the most common (33%) amputation procedure performed. The correlation of hemodynamic status at presentation with the outcome was statistically significant (p-0.001). Outcome measures like delayed presentation, hemorrhagic shock, Injury severity scores (ISS), and the new injury severity scores (NISS) were statistically significant (p-0.001) when compared to the outcome. There were 47 (8.6%) mortalities during the study period.
    Conclusion: Factors that affected the outcome were delayed presentation, hemorrhagic shock, higher ISS, NISS, MESS scores, surgical-site infection, and associated injuries. Overall mortality during the study was 8.6%.
    MeSH term(s) Male ; Humans ; Retrospective Studies ; Trauma Centers ; Shock, Hemorrhagic/etiology ; Shock, Hemorrhagic/surgery ; Amputation, Surgical ; Injury Severity Score ; Limb Salvage ; Treatment Outcome
    Language English
    Publishing date 2023-05-26
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2275480-5
    ISSN 1863-9941 ; 1863-9933
    ISSN (online) 1863-9941
    ISSN 1863-9933
    DOI 10.1007/s00068-023-02273-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Understanding the determinants of sweet taste liking in the African and East Asian ancestry groups in the U.S.-A study protocol.

    Cheung, May M / Hubert, Patrice A / Reed, Danielle R / Pouget, Enrique R / Jiang, Xinyin / Hwang, Liang-Dar

    PloS one

    2024  Volume 19, Issue 4, Page(s) e0300071

    Abstract: ... added sugars intake, respectively, among ancestry groups in the U.S. We will collect information ... of-birth, and for immigrants, duration of time living in the U.S. and age when immigrated. Ancestry ... We will also compare sweet liking between U.S.-born individuals and immigrants within each ancestry group ...

    Abstract Background: The liking for sweet taste is a powerful driver for consuming added sugars, and therefore, understanding how sweet liking is formed is a critical step in devising strategies to lower added sugars consumption. However, current research on the influence of genetic and environmental factors on sweet liking is mostly based on research conducted with individuals of European ancestry. Whether these results can be generalized to people of other ancestry groups warrants investigation.
    Methods: We will determine the differences in allele frequencies in sweet-related genetic variants and their effects on sweet liking in 426 adults of either African or East Asian ancestry, who have the highest and lowest average added sugars intake, respectively, among ancestry groups in the U.S. We will collect information on participants' sweet-liking phenotype, added sugars intake (sweetness exposure), anthropometric measures, place-of-birth, and for immigrants, duration of time living in the U.S. and age when immigrated. Ancestry-specific polygenic scores of sweet liking will be computed based on the effect sizes of the sweet-related genetic variants on the sweet-liking phenotype for each ancestry group. The predictive validity of the polygenic scores will be tested using individuals of African and East Asian ancestry from the UK Biobank. We will also compare sweet liking between U.S.-born individuals and immigrants within each ancestry group to test whether differences in environmental sweetness exposure during childhood affect sweet liking in adulthood.
    Discussion: Expanding genetic research on taste to individuals from ancestry groups traditionally underrepresented in such research is consistent with equity goals in sensory and nutrition science. Findings from this study will help in the development of a more personalized nutrition approach for diverse populations.
    Trial registration: This protocol has been preregistered with the Center for Open Science (https://doi.org/10.17605/OSF.IO/WPR9E).
    MeSH term(s) Adult ; Female ; Humans ; Male ; Middle Aged ; Young Adult ; Food Preferences ; Gene Frequency ; Polymorphism, Single Nucleotide ; Taste/genetics ; Taste/physiology ; United States ; Asian/genetics ; Black or African American/genetics ; Research Design
    Language English
    Publishing date 2024-04-29
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0300071
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Understanding the Determinants of Sweet Liking in the African and East Asian Ancestry Groups in the U.S. - A Study Protocol.

    Cheung, May M / Hubert, Patrice A / Reed, Danielle R / Pouget, Enrique R / Jiang, Xinyin / Hwang, Liang-Dar

    Research square

    2023  

    Abstract: ... added sugars intake, respectively, among ancestry groups in the U.S. We will collect information ... of-birth, and for immigrants, duration of time living in the U.S. and age when immigrated. Ancestry ... We will also compare sweet liking between U.S.-born individuals and immigrants within each ancestry group ...

    Abstract Background: The liking for sweet taste is a powerful driver for consuming added sugars, and therefore, understanding how sweet liking is formed is a critical step in devising strategies to lower added sugars consumption. However, current research on the influence of genetic and environmental factors on sweet liking is mostly based on research conducted with individuals of European ancestry. Whether these results can be generalized to people of other ancestry groups warrants investigation.
    Methods: We will determine the differences in allele frequencies in sweet-related genetic variants and their effects on sweet liking in 426 adults of either African or East Asian ancestry, who have the highest and lowest average added sugars intake, respectively, among ancestry groups in the U.S. We will collect information on participants' sweet-liking phenotype, added sugars intake (sweetness exposure), anthropometric measures, place-of-birth, and for immigrants, duration of time living in the U.S. and age when immigrated. Ancestry-specific polygenic scores of sweet liking will be computed based on the effect sizes of the sweet-related genetic variants on the sweet-liking phenotype for each ancestry group. The predictive validity of the polygenic scores will be tested using individuals of African and East Asian ancestry from the UK Biobank. We will also compare sweet liking between U.S.-born individuals and immigrants within each ancestry group to test whether differences in environmental sweetness exposure during childhood affect sweet liking in adulthood.
    Discussion: Expanding genetic research on taste to individuals from ancestry groups traditionally underrepresented in such research is consistent with equity goals in sensory and nutrition science. Findings from this study will help in the development of a more personalized nutrition approach for diverse populations.
    Trial registration: This protocol has been preregistered with the Center for Open Science (https://doi.org/10.17605/OSF.IO/WPR9E) and is approved by the City University of New York Human Research Protection Program (IRB#: 2023-0064-Brooklyn).
    Language English
    Publishing date 2023-11-28
    Publishing country United States
    Document type Preprint
    DOI 10.21203/rs.3.rs-3644422/v1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: AMPA Receptor Surface Expression Is Regulated by S-Nitrosylation of Thorase and Transnitrosylation of NSF.

    Umanah, George K E / Ghasemi, Mehdi / Yin, Xiling / Chang, Melissa / Kim, Jin Wan / Zhang, Jianmin / Ma, Erica / Scarffe, Leslie A / Lee, Yun-Il / Chen, Rong / Tangella, Kavya / McNamara, Amy / Abalde-Atristain, Leire / Dar, Mohamad A / Bennett, Samuel / Cortes, Marisol / Andrabi, Shaida A / Doulias, Paschalis-Thomas / Ischiropoulos, Harry /
    Dawson, Ted M / Dawson, Valina L

    Cell reports

    2020  Volume 33, Issue 5, Page(s) 108329

    Abstract: ... aspartate receptor (NMDAR) activation leads to increased S-nitrosylation of Thorase and N-ethylmaleimide ... sensitive factor (NSF). S-nitrosylation of Thorase stabilizes Thorase-AMPAR complexes and enhances ... the internalization of AMPAR and interaction with protein-interacting C kinase 1 (PICK1). S-nitrosylated NSF is ...

    Abstract The regulation of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) trafficking affects multiple brain functions, such as learning and memory. We have previously shown that Thorase plays an important role in the internalization of AMPARs from the synaptic membrane. Here, we show that N-methyl-d-aspartate receptor (NMDAR) activation leads to increased S-nitrosylation of Thorase and N-ethylmaleimide-sensitive factor (NSF). S-nitrosylation of Thorase stabilizes Thorase-AMPAR complexes and enhances the internalization of AMPAR and interaction with protein-interacting C kinase 1 (PICK1). S-nitrosylated NSF is dependent on the S-nitrosylation of Thorase via trans-nitrosylation, which modulates the surface insertion of AMPARs. In the presence of the S-nitrosylation-deficient C137L Thorase mutant, AMPAR trafficking, long-term potentiation, and long-term depression are impaired. Overall, our data suggest that both S-nitrosylation and interactions of Thorase and NSF/PICK1 are required to modulate AMPAR-mediated synaptic plasticity. This study provides critical information that elucidates the mechanism underlying Thorase and NSF-mediated trafficking of AMPAR complexes.
    MeSH term(s) ATPases Associated with Diverse Cellular Activities/metabolism ; Adenosine Triphosphatases/metabolism ; Amino Acid Sequence ; Animals ; Cell Cycle Proteins/metabolism ; Cell Membrane/metabolism ; Cysteine/metabolism ; Endocytosis/drug effects ; Glutathione/metabolism ; HEK293 Cells ; Humans ; Mice, Inbred C57BL ; Mice, Knockout ; N-Ethylmaleimide-Sensitive Proteins/metabolism ; N-Methylaspartate/pharmacology ; Neuronal Plasticity ; Nitric Oxide/metabolism ; Nitrosation ; Protein Binding ; Protein Multimerization ; Protein Transport ; Receptors, AMPA/metabolism ; S-Nitrosoglutathione/metabolism
    Chemical Substances Cell Cycle Proteins ; Prkcabp protein, mouse ; Receptors, AMPA ; Nitric Oxide (31C4KY9ESH) ; S-Nitrosoglutathione (57564-91-7) ; N-Methylaspartate (6384-92-5) ; Adenosine Triphosphatases (EC 3.6.1.-) ; ATAD1 protein, mouse (EC 3.6.1.3) ; ATPases Associated with Diverse Cellular Activities (EC 3.6.4.-) ; N-Ethylmaleimide-Sensitive Proteins (EC 3.6.4.6) ; Glutathione (GAN16C9B8O) ; Cysteine (K848JZ4886)
    Language English
    Publishing date 2020-11-03
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2020.108329
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: The Implications of a Dermatopathologist’s Report on Melanoma Diagnosis and Treatment

    Asher Nethanel / Christofis Kyprianou / Aviv Barzilai / Ronnie Shapira-Frommer / Yaron Shoham / Rachel Kornhaber / Michelle Cleary / Galit Avinoam-Dar / Shirly Grynberg / Josef Haik / Assaf Debby / Moti Harats

    Life, Vol 13, Iss 1803, p

    2023  Volume 1803

    Abstract: An accurate and comprehensive histopathology report is essential for cutaneous melanoma management, providing critical information for accurate staging and risk estimation and determining the optimal surgical approach. In many institutions, a review of ... ...

    Abstract An accurate and comprehensive histopathology report is essential for cutaneous melanoma management, providing critical information for accurate staging and risk estimation and determining the optimal surgical approach. In many institutions, a review of melanoma biopsy specimens by expert dermatopathologists is considered a necessary step. This study examined these reviews to determine the critical primary histopathology Breslow score in which a histopathology review would be most beneficial. Histopathology reports of patients referred to our institute between January 2011 and September 2019 were compared with our in-house review conducted by an expert dermatopathologist. The review focused on assessing fundamental histologic and clinical prognostic features. A total of 177 specimens underwent histopathology review. Significant changes in the Breslow index were identified in 103 cases (58.2%). Notably, in many of these cases (73.2%), the revised Breslow was higher than the initially reported score. Consequently, the T-stage was modified in 51 lesions (28.8%). Substantial discordance rates were observed in Tis (57%), T1b (59%), T3a (67%) and T4a (50%) classifications. The revised histopathology reports resulted in alterations to the surgical plan in 15.3% of the cases. These findings emphasize the importance of having all routine pathologies of pigmented lesions referred to a dedicated cancer center and reviewed by an experienced dermatopathologist. This recommendation is particularly crucial in instances where the histopathology review can potentially alter the diagnosis and treatment plan, such as in melanoma in situ and thinner melanomas measuring 0.6–2.2 mm in thickness. Our study highlights the significant impact of histopathology reviews in cutaneous melanoma cases. The observed changes in Breslow scores and subsequent modifications in T-stage classification underline the need for thorough evaluation by an expert dermatopathologist, especially in cases of melanoma in situ and thin melanomas. Incorporating ...
    Keywords melanoma ; dermatopathology ; histopathology review ; Breslow’s depth ; Science ; Q
    Subject code 306
    Language English
    Publishing date 2023-08-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Exploring the Role of Infodemics in People’s Incompliance with Preventive Measures during the COVID-19 in Conflict Settings (Mixed Method Study)

    Ahmed Asa’ad Al-Aghbari / Ola El Hajj Hassan / Maureen Dar Iang / Albrecht Jahn / Olaf Horstick / Fekri Dureab

    Healthcare, Vol 11, Iss 952, p

    2023  Volume 952

    Abstract: ... with preventive measures and investigated the role of infodemic in people’s non-compliance with COVID-19 ...

    Abstract The evolving availability of health information on social media, regardless of its credibility, raises several questions about its impact on our health decisions and social behaviors, especially during health crises and in conflict settings where compliance with preventive measures and health guidelines is already a challenge due to socioeconomic factors. For these reasons, we assessed compliance with preventive measures and investigated the role of infodemic in people’s non-compliance with COVID-19 containment measures in Yemen. To this purpose and to triangulate our data collection, we executed a mixed method approach in which raw aggregated data were taken and analyzed from multiple sources (COVID-19 Government Response Tracker and Google COVID-19 Community Mobility Reports), then complemented and verified with In-depth interviews. Our results showed that the population in Yemen had relatively complied with the governmental containment measures at the beginning of the pandemic. However, containment measures were not supported by daily COVID-19 reports due to low transparency, which, together with misinformation and lack of access to reliable sources, has caused the population not to believe in COVID-19 and even practice social pressure on those who showed some compliance with the WHO guidelines. Those results indicate the importance of adopting an infodemic management approach in response to future outbreaks, particularly in conflict settings.
    Keywords Infodemic management ; health misinformation ; information source ; information access ; health crises ; incompliance ; Medicine ; R
    Subject code 360
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: One-Pot Synthesis and Evaluation of Antileishmanial Activities of Functionalized S-Alkyl/Aryl Benzothiazole-2-carbothioate Scaffold.

    Dar, Ajaz A / Shadab, M / Khan, Suman / Ali, Nahid / Khan, Abu T

    The Journal of organic chemistry

    2016  Volume 81, Issue 8, Page(s) 3149–3160

    Abstract: The synthesis of hitherto unreported S-alkyl/aryl benzothiazole-2-carbothioate is reported ... formation of benzothiazoles and thioesters via simultaneous formation of C-N and C-S bonds in good yields ...

    Abstract The synthesis of hitherto unreported S-alkyl/aryl benzothiazole-2-carbothioate is reported from thiols, oxalyl chloride, and 2-aminothiophenols using 10 mol % n-tetrabutylammonium iodide (TBAI) as catalyst in acetonitrile through multicomponent reaction (MCR) strategy. The present protocol favored formation of benzothiazoles and thioesters via simultaneous formation of C-N and C-S bonds in good yields with a wide range of substrates. A few of the synthesized derivatives were evaluated for their antimicrobial activity against the protozoan parasite Leishmania donovani, a causative agent of visceral leishmaniasis (VL). Further, these compounds displayed no toxicity toward macrophage RAW 264.7 cells and are therefore nontoxic and effective antileishmanial leads. In silico docking studies were performed to understand the possible binding site interaction with trypanothione reductase (TryR).
    MeSH term(s) Antiprotozoal Agents/chemical synthesis ; Antiprotozoal Agents/chemistry ; Antiprotozoal Agents/pharmacology ; Benzothiazoles/chemical synthesis ; Benzothiazoles/chemistry ; Benzothiazoles/pharmacology ; Binding Sites ; Leishmania donovani/drug effects ; Leishmania donovani/enzymology ; Leishmaniasis, Visceral/enzymology ; Macrophages/drug effects ; NADH, NADPH Oxidoreductases/chemistry ; NADH, NADPH Oxidoreductases/drug effects ; NADH, NADPH Oxidoreductases/metabolism ; Ornithine Decarboxylase/metabolism ; Sulfhydryl Compounds/chemistry
    Chemical Substances Antiprotozoal Agents ; Benzothiazoles ; Sulfhydryl Compounds ; NADH, NADPH Oxidoreductases (EC 1.6.-) ; trypanothione reductase (EC 1.8.1.12) ; Ornithine Decarboxylase (EC 4.1.1.17)
    Language English
    Publishing date 2016-04-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 123490-0
    ISSN 1520-6904 ; 0022-3263
    ISSN (online) 1520-6904
    ISSN 0022-3263
    DOI 10.1021/acs.joc.6b00113
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  9. Article ; Online: Photoclinic. Kartagener’s syndrome.

    Siraj, Farhana / Hussain, Mir Mohammad / Showkat, Hakim Irfan / Sarmast, Arif Hussain / Dar, Nazir Ahmad / Bhat, Gull Mohammad

    Archives of Iranian medicine

    2013  Volume 16, Issue 2, Page(s) 129–130

    MeSH term(s) Bronchiectasis/diagnostic imaging ; Bronchiectasis/etiology ; Dextrocardia/etiology ; Electrocardiography ; Female ; Humans ; Kartagener Syndrome/complications ; Kartagener Syndrome/diagnosis ; Kartagener Syndrome/pathology ; Kartagener Syndrome/physiopathology ; Middle Aged ; Radiography
    Language English
    Publishing date 2013-02
    Publishing country Iran
    Document type Case Reports ; Journal Article
    ZDB-ID 2204979-4
    ISSN 1735-3947 ; 1029-2977
    ISSN (online) 1735-3947
    ISSN 1029-2977
    DOI 013162/AIM.0016
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Rumi and Iqbal’s Concept of Divine Love, a Brief Analysis

    Dr. Ateequllah Dar

    Litinfinite, Vol 1, Iss 1, Pp 15-

    2019  Volume 22

    Abstract: ... theme in their philosophy, a sublime, holy and remedy for all ailments of man’s weakness. It is an ever ...

    Abstract This paper is written on the two multi-genius thinkers who were globally acknowledged to be the greatest poet philosphers/ and mystic par-excellence of the Islamic history. Rumi (Peer-e-Rumi)belongs to 13th century and Muradee-Hindi (Iqbal) belongs to the 19th century. Both have a close affinity on many facets and were imbibed with Islamic cannons, beliefs, norms, values and injuctions. Both were adequates of love, peace and oneness of mankind. In all creations, divine love is the crux in their philosophical systems. This paper is an attempt to highlight some similar glimpses of love as it is commonly misunderstood as solely a romantic relation between two individuals or two objects. Notwithstanding hardly anyone knows what the Divine Love is. Mere love to physical objects is an ephemeral, a lust and intense attachment of worldly pleasures which is a superficial understanding of true love. Divine Love is a central theme in their philosophy, a sublime, holy and remedy for all ailments of man’s weakness. It is an ever-going activity without ending process. It is neither lust nor phantasy. It transcendences all worldly bondage and thus makes a man ture human according to Rumi and Iqbal.
    Keywords tranquillity ; transcendence ; shilly-shalies,dilly-dallies ; Language and Literature ; P ; Social Sciences ; H
    Subject code 230
    Language Bengali
    Publishing date 2019-07-01T00:00:00Z
    Publisher Supriyo Chakraborty, Penprints Publication
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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