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  1. Article ; Online: Resemblances and differences between osteoradionecrosis of the jaw and medication-related osteonecrosis of the jaw.

    Golu, Mihai Vlad / Paşcanu, Ionela / Petrovan, Cecilia / Mocan, Simona / Cosarcă, Adina / Temistocle, Despina Bereczki / Ormenişan, Alina

    Medicine and pharmacy reports

    2024  Volume 97, Issue 1, Page(s) 76–83

    Abstract: Aim: The aim of this retrospective study was to identify the clinical, radiological, and histological characteristics of patients diagnosed with osteonecrosis of the jaw (ONJ) and treated at the Oral and Maxillo-Facial Surgery Clinic of the Emergency ... ...

    Abstract Aim: The aim of this retrospective study was to identify the clinical, radiological, and histological characteristics of patients diagnosed with osteonecrosis of the jaw (ONJ) and treated at the Oral and Maxillo-Facial Surgery Clinic of the Emergency Clinical County Hospital of Targu Mures between 2017 and 2022. The study aimed to analyze correlations between patient characteristics, particularly their history of bone modifying agent use or local radiotherapy during cancer treatment, in order to identify specific patient profiles that could aid in evaluating treatment response and guide individualized treatment strategies.
    Methods: Fifty-two patients diagnosed with ONJ were included in the study. The patients were divided into two groups based on their medical history: the bone modifying agent use group and the radiotherapy group. Clinical, radiological, and histological data were collected and analyzed. Statistical analysis, including p-values, was performed to compare patient characteristics between the two groups.
    Results: Patients in the radiotherapy group were significantly older than those in the bone modifying agent use group (66 years vs. 56.9 years, p=0.001). There was a higher proportion of males in the radiotherapy group compared to the bone modifying agent use group (90% vs. 22%, p<0.001). Jaw involvement was more prevalent in the radiotherapy group compared to the bone modifying agent use group (95% vs. 66%, p=0.018). Histological analysis showed a similar frequency of Actinomyces species in both groups (50% vs. 34%, p=0.264).
    Conclusions: The findings of this study suggest the existence of two distinct patient profiles based on their treatment history (bone modifying agent use vs. radiotherapy) in ONJ. Patients in the radiotherapy group were older, predominantly male, and exhibited a higher prevalence of jaw involvement. Histological analysis revealed no significant differences in Actinomyces species frequency between the two groups. These distinct patient profiles may indicate different responses to treatment, emphasizing the need for individualized treatment strategies tailored to specific patient characteristics. Further research is warranted to validate these findings and develop personalized approaches for managing ONJ.
    Language English
    Publishing date 2024-01-29
    Publishing country Romania
    Document type Journal Article
    ZDB-ID 2974425-8
    ISSN 2668-0572 ; 2602-0807
    ISSN (online) 2668-0572
    ISSN 2602-0807
    DOI 10.15386/mpr-2610
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Recurrent submandibular fistula after Sunitinib treatment in a patient with renal cell carcinoma: a case report.

    Golu, Mihai Vlad / Paşcanu, Ionela / Petrovan, Cecilia / Cosarca, Adina / Bereczki, Despina Temistocle / Ormenisan, Alina

    Medicine and pharmacy reports

    2023  Volume 96, Issue 3, Page(s) 323–327

    Abstract: Sunitinib is commonly used in the treatment of patients with renal cell carcinoma and is associated with serious side-effects. We present the first report of a recurrent submandibular fistula in a patient treated with sunitinib. A 68-year-old man was ... ...

    Abstract Sunitinib is commonly used in the treatment of patients with renal cell carcinoma and is associated with serious side-effects. We present the first report of a recurrent submandibular fistula in a patient treated with sunitinib. A 68-year-old man was referred to our clinic for a cutaneous fistula situated on the right side of his lower jaw. The patient had been diagnosed with bone metastases from a renal carcinoma 2 years ago and had received a single 4 mg dose of zoledronic acid and subsequent treatment with sunitinib 37.5 mg once daily for the past 4 weeks. The patient was treated surgically by a perilesional incision and primary closure with sutures, advised on meticulous oral hygiene and was kept on an antimicrobial agent in the form of clindamycin. After reinitiating his oncological treatment with sunitinib the cutaneous fistula re-appeared and bone abnormalities were also detected on his X-ray. After 18 months a contralateral cutaneous fistula was observed along with a spontaneous avulsion of the patient's left molar. Repeat surgical treatment and sequestrectomy was performed with the subsequent histopathological examination revealing a suspicion of osteonecrosis of the jaw and an associated Actinomyces infection.
    Language English
    Publishing date 2023-07-27
    Publishing country Romania
    Document type Case Reports
    ZDB-ID 2974425-8
    ISSN 2668-0572 ; 2602-0807
    ISSN (online) 2668-0572
    ISSN 2602-0807
    DOI 10.15386/mpr-2502
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Selecting the Best Surgical Treatment Methods in Oro-Antral Communications.

    Bereczki-Temistocle, Despina Luciana / Gurzu, Simona / Jung, Ioan / Cosarca, Adina / Beresescu, Gabriela / Golu, Vlad / Petrovan, Cecilia / Ormenisan, Alina

    International journal of environmental research and public health

    2022  Volume 19, Issue 21

    Abstract: Introduction: an oro-antral communication is defined as a permanent pathological connection between the maxillary sinus and the septic oral cavity. Several flaps can be used for the closure (buccal flap, palatal flap, combination techniques) but ... ...

    Abstract Introduction: an oro-antral communication is defined as a permanent pathological connection between the maxillary sinus and the septic oral cavity. Several flaps can be used for the closure (buccal flap, palatal flap, combination techniques) but relapses occur often in case of a large defects and underlying general conditions. Bichat fad pad flap is a multipotent pedicled fatty tissue that is easily accessible from the oral cavity that can be used for the closure of medium-sized defects, even in immunocompromised patients due to its stem cell capacity.
    Materials and methods: the medical information of the patients diagnosed with oro-antral communications who were admitted and treated in the Oral and Maxillo-Facial Clinic Targu Mures, between 2013 and 2020 were analyzed. A database containing general information, reported causes, associated diseases, surgical methods used during admission, and relapses, was created. The information was statistically processed. The written consent and ethical approval were obtained.
    Results: the study shows that from a total of 140 cases, 72 were treated using buccal advancement flap, 49 using Bichat fat pad flap, and 19 using palatal flaps. The dimensions of the communications ranged between 0.3 cm and 1.5 cm. Several statistically significant results could be found when comparing the surgical methods. Of the 72 patients treated with buccal advancement flaps, 25 presented relapses as opposed to the patients treated with Bichat fat pad flaps who showed no complications,
    Conclusions: the most frequently used surgical treatment is the buccal flap, which also has the highest relapse rate. Both primary treatment with Bichat fat-pad flap and re-treatment of relapses using this flap have had 100% success rates, even in patients with general associated conditions, in contrast with patients treated by using the buccal flap. The dimensions of the oro-antral communication and general conditions are crucial factors for the success of the surgical treatment.
    MeSH term(s) Humans ; Oroantral Fistula/etiology ; Oroantral Fistula/surgery ; Surgical Flaps ; Adipose Tissue ; Maxillary Sinus ; Recurrence
    Language English
    Publishing date 2022-11-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph192114543
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Evaluation of commercial qPCR kits for detection of SARS-CoV-2 in pooled samples

    Petrovan, Vlad / Vrajmasu, Virgil / Dimon, Paula / Zaulet, Mihaela

    bioRxiv

    Abstract: Due to the current pandemic, global shortage of reagents has drawn interest in developing alternatives to increase the number coronavirus tests. One such alternative is sample pooling. Here we compared commercial kits that are used in COVID-19 ... ...

    Abstract Due to the current pandemic, global shortage of reagents has drawn interest in developing alternatives to increase the number coronavirus tests. One such alternative is sample pooling. Here we compared commercial kits that are used in COVID-19 diagnostics, in terms of sensitivity and feasibility for use in pooling. We showed that pooling of up to 60 samples did not affect the efficiency of the kits. Also, the RNA dependent RNA polymerase (RdRp) is a more suitable target in pooled samples than the Envelope (E) protein. This approach could provide an easy method of screening large number of samples and help adjust different government regulations.
    Keywords covid19
    Language English
    Publishing date 2020-05-28
    Publisher Cold Spring Harbor Laboratory
    Document type Article ; Online
    DOI 10.1101/2020.05.28.120667
    Database COVID19

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  5. Article ; Online: Evaluation of commercial qPCR kits for detection of SARS-CoV-2 in pooled samples

    Petrovan, Vlad / Vrajmasu, Virgil / Dimon, Paula / Zaulet, Mihaela

    bioRxiv

    Abstract: Due to the current pandemic, global shortage of reagents has drawn interest in developing alternatives to increase the number coronavirus tests. One such alternative is sample pooling. Here we compared commercial kits that are used in COVID-19 ... ...

    Abstract Due to the current pandemic, global shortage of reagents has drawn interest in developing alternatives to increase the number coronavirus tests. One such alternative is sample pooling. Here we compared commercial kits that are used in COVID-19 diagnostics, in terms of sensitivity and feasibility for use in pooling. We showed that pooling of up to 60 samples did not affect the efficiency of the kits. Also, the RNA dependent RNA polymerase (RdRp) is a more suitable target in pooled samples than the Envelope (E) protein. This approach could provide an easy method of screening large number of samples and help adjust different government regulations.
    Keywords covid19
    Publisher BioRxiv; WHO
    Document type Article ; Online
    DOI 10.1101/2020.05.28.120667
    Database COVID19

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  6. Article ; Online: A protective multiple gene-deleted African swine fever virus genotype II, Georgia 2007/1, expressing a modified non-haemadsorbing CD2v protein.

    Rathakrishnan, Anusyah / Reis, Ana L / Petrovan, Vlad / Goatley, Lynnette C / Moffat, Katy / Lui, Yuan / Vuong, Mai T / Ikemizu, Shinji / Davis, Simon J / Dixon, Linda K

    Emerging microbes & infections

    2023  Volume 12, Issue 2, Page(s) 2265661

    Abstract: African swine fever virus is a complex DNA virus that causes high fatality in pigs and wild boar and has a great socio-economic impact. An attenuated genotype II strain was constructed by replacing the gene for wildtype CD2v protein with versions in ... ...

    Abstract African swine fever virus is a complex DNA virus that causes high fatality in pigs and wild boar and has a great socio-economic impact. An attenuated genotype II strain was constructed by replacing the gene for wildtype CD2v protein with versions in which single or double amino acid substitutions were introduced to reduce or abrogate the binding to red blood cells and reduce virus persistence in blood. The mutant CD2v proteins were expressed at similar levels to the wildtype protein on the surface of infected cells. Three recombinant viruses also had K145R, EP153R, and in one virus DP148R genes deleted. Following immunization of pigs, the virus with a single amino acid substitution in CD2v, Q96R, induced moderate levels of replication, and 100% protection against virulent ASFV. Two additional recombinant viruses had two amino acid substitutions in CD2v, Q96R, and K108D, and induced no binding to red blood cells
    MeSH term(s) Swine ; Animals ; African Swine Fever Virus/physiology ; African Swine Fever/prevention & control ; Viral Proteins/genetics ; Genotype ; Antibodies, Viral ; Viral Vaccines
    Chemical Substances Viral Proteins ; Antibodies, Viral ; Viral Vaccines
    Language English
    Publishing date 2023-10-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2681359-2
    ISSN 2222-1751 ; 2222-1751
    ISSN (online) 2222-1751
    ISSN 2222-1751
    DOI 10.1080/22221751.2023.2265661
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Epitope mapping of African swine fever virus (ASFV) structural protein, p54.

    Petrovan, Vlad / Murgia, Maria V / Wu, Ping / Lowe, Andre D / Jia, Wei / Rowland, Raymond R R

    Virus research

    2020  Volume 279, Page(s) 197871

    Abstract: In the absence of a vaccine for African swine fever virus (ASFV), diagnostic tools are critical for early detection and implementation of control measures. Along with other immunogenic proteins, p54 is a good serological target for conducting ASF ... ...

    Abstract In the absence of a vaccine for African swine fever virus (ASFV), diagnostic tools are critical for early detection and implementation of control measures. Along with other immunogenic proteins, p54 is a good serological target for conducting ASF detection and surveillance. In this study, a panel of 12 mouse monoclonal antibodies (mAbs) was prepared against a baculovirus-expressed p54(60-178) polypeptide. Further screening showed that five mAbs were positive for reactivity against ASFV-infected cells and recombinant p54 proteins. Mapping studies using five polypeptides and 12 oligopeptides, showed that mAb #154-1 recognized a conserved polypeptide sequence, p54(65-75), and was placed into Group 1. Mabs #143-1 and #7 recognized a region covered by p54(93-113) and were placed into Group 2. Group 3 consisted of mAbs #101 and #117, which recognized p54(118-127). Sera from pigs infected with the low virulent OURT 88/3 strain recognized the same p54 region covered by the Group 3 mAbs. When tested in a neutralization format, only mAb #143-1 showed neutralization activity above background. Together, the results identify important antigenic and immunogenic regions located on p54, which provide new tools for improving ASFV diagnostics.
    MeSH term(s) African Swine Fever/virology ; African Swine Fever Virus/chemistry ; African Swine Fever Virus/genetics ; African Swine Fever Virus/immunology ; Animals ; Antibodies, Monoclonal/biosynthesis ; Antibodies, Monoclonal/immunology ; Antibodies, Viral/blood ; Antigens, Viral/immunology ; Baculoviridae/genetics ; Baculoviridae/immunology ; Chlorocebus aethiops ; Epitope Mapping/methods ; Mice ; Swine ; Vero Cells ; Viral Structural Proteins/genetics ; Viral Structural Proteins/immunology
    Chemical Substances Antibodies, Monoclonal ; Antibodies, Viral ; Antigens, Viral ; Viral Structural Proteins ; p54 protein, African swine fever virus
    Language English
    Publishing date 2020-01-28
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 605780-9
    ISSN 1872-7492 ; 0168-1702
    ISSN (online) 1872-7492
    ISSN 0168-1702
    DOI 10.1016/j.virusres.2020.197871
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Selecting the Best Surgical Treatment Methods in Oro-Antral Communications

    Despina Luciana Bereczki-Temistocle / Simona Gurzu / Ioan Jung / Adina Cosarca / Gabriela Beresescu / Vlad Golu / Cecilia Petrovan / Alina Ormenisan

    International Journal of Environmental Research and Public Health, Vol 19, Iss 14543, p

    2022  Volume 14543

    Abstract: Introduction: an oro-antral communication is defined as a permanent pathological connection between the maxillary sinus and the septic oral cavity. Several flaps can be used for the closure (buccal flap, palatal flap, combination techniques) but relapses ...

    Abstract Introduction: an oro-antral communication is defined as a permanent pathological connection between the maxillary sinus and the septic oral cavity. Several flaps can be used for the closure (buccal flap, palatal flap, combination techniques) but relapses occur often in case of a large defects and underlying general conditions. Bichat fad pad flap is a multipotent pedicled fatty tissue that is easily accessible from the oral cavity that can be used for the closure of medium-sized defects, even in immunocompromised patients due to its stem cell capacity. Materials and methods: the medical information of the patients diagnosed with oro-antral communications who were admitted and treated in the Oral and Maxillo-Facial Clinic Targu Mures, between 2013 and 2020 were analyzed. A database containing general information, reported causes, associated diseases, surgical methods used during admission, and relapses, was created. The information was statistically processed. The written consent and ethical approval were obtained. Results: the study shows that from a total of 140 cases, 72 were treated using buccal advancement flap, 49 using Bichat fat pad flap, and 19 using palatal flaps. The dimensions of the communications ranged between 0.3 cm and 1.5 cm. Several statistically significant results could be found when comparing the surgical methods. Of the 72 patients treated with buccal advancement flaps, 25 presented relapses as opposed to the patients treated with Bichat fat pad flaps who showed no complications, p < 0.05. Analysing this aspect further, all large defects (10 cases) ranging from 0.6 cm to 1.5 cm treated with advancement buccal flaps (Rehrmann flaps) showed relapses ( p < 0.05). Considering the general conditions, out of 7 patients who received radiotherapy 4 presented relapses, as opposed to the healthy patients, p < 0.05. Regarding the reintervention for the relapsed cases, the majority of the cases treated a second time with buccal advancement flap (5 out of 7 cases) failed as opposed to the ...
    Keywords Bichat fat pad flap ; communication ; buccal flap ; general conditions ; relapse ; Medicine ; R
    Subject code 616
    Language English
    Publishing date 2022-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Role of African Swine Fever Virus Proteins EP153R and EP402R in Reducing Viral Persistence in Blood and Virulence in Pigs Infected with BeninΔDP148R.

    Petrovan, Vlad / Rathakrishnan, Anusyah / Islam, Muneeb / Goatley, Lynnette C / Moffat, Katy / Sanchez-Cordon, Pedro J / Reis, Ana L / Dixon, Linda K

    Journal of virology

    2021  Volume 96, Issue 1, Page(s) e0134021

    Abstract: The limited knowledge on the role of many of the approximately 170 proteins encoded by African swine fever virus restricts progress toward vaccine development. Previously, the DP148R gene was deleted from the genome of genotype I virulent Benin 97/1 ... ...

    Abstract The limited knowledge on the role of many of the approximately 170 proteins encoded by African swine fever virus restricts progress toward vaccine development. Previously, the DP148R gene was deleted from the genome of genotype I virulent Benin 97/1 isolate. This virus, BeninΔDP148R, induced transient moderate clinical signs after immunization and high levels of protection against challenge. However, the BeninΔDP148R virus and genome persisted in blood over a prolonged period. In the current study, deletion of either EP402R or EP153R genes individually or in combination from BeninΔDP148R genome was shown not to reduce virus replication in macrophages
    MeSH term(s) African Swine Fever/immunology ; African Swine Fever/metabolism ; African Swine Fever/virology ; African Swine Fever Virus/physiology ; Animals ; Antibodies, Viral/blood ; Antibodies, Viral/immunology ; Antigens, Viral/genetics ; Antigens, Viral/immunology ; Antigens, Viral/metabolism ; Biomarkers ; Cells, Cultured ; Genetic Engineering ; Genotype ; Host-Pathogen Interactions ; Immunization ; Macrophages/immunology ; Macrophages/metabolism ; Macrophages/virology ; Sequence Deletion ; Swine ; Viral Proteins/genetics ; Viral Proteins/immunology ; Viral Proteins/metabolism ; Viral Vaccines/immunology ; Viremia/virology ; Virulence ; Virus Replication
    Chemical Substances Antibodies, Viral ; Antigens, Viral ; Biomarkers ; Viral Proteins ; Viral Vaccines
    Language English
    Publishing date 2021-10-13
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80174-4
    ISSN 1098-5514 ; 0022-538X
    ISSN (online) 1098-5514
    ISSN 0022-538X
    DOI 10.1128/JVI.01340-21
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Development of a Blocking Enzyme-Linked Immunosorbent Assay for Detection of Antibodies against African Swine Fever Virus.

    Yuan, Fangfeng / Petrovan, Vlad / Gimenez-Lirola, Luis Gabriel / Zimmerman, Jeffrey J / Rowland, Raymond R R / Fang, Ying

    Pathogens (Basel, Switzerland)

    2021  Volume 10, Issue 6

    Abstract: The incursion of African swine fever virus (ASFV) into Eurasia presents a threat to the world's swine industry. Highly sensitive and specific diagnostic assays are urgently needed for rapid detection during an outbreak, post-outbreak investigation, and ... ...

    Abstract The incursion of African swine fever virus (ASFV) into Eurasia presents a threat to the world's swine industry. Highly sensitive and specific diagnostic assays are urgently needed for rapid detection during an outbreak, post-outbreak investigation, and disease surveillance. In this study, a highly specific and repeatable blocking ELISA (bELISA) was developed using a recombinant p30 protein as the antigen combined with biotinylated mAb against p30 as the detection antibody. Initial test validation included sera from 810 uninfected animals and 106 animals experimentally inoculated with ASFV or recombinant alphavirus/adenovirus expressing p30. Receiver operating characteristic (ROC) analysis of the data calculated an optimal percentage of inhibition (PI) cutoff value of 45.92%, giving a diagnostic sensitivity of 98.11% and diagnostic specificity of 99.42%. The coefficient of variation of an internal quality control serum was 6.81% for between runs, 6.71% for within run, and 6.14% for within plate. A time course study of infected pigs showed that bELISA was able to detect seroconversion as early as 7 days post-inoculation. Taken together, these results demonstrate that bELISA can be used as an alternative serological test for detecting ASFV infection.
    Language English
    Publishing date 2021-06-17
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2695572-6
    ISSN 2076-0817
    ISSN 2076-0817
    DOI 10.3390/pathogens10060760
    Database MEDical Literature Analysis and Retrieval System OnLINE

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