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depth Integrated Microbial Community and Physico-Chemical Properties in Mangrove Soil of Sundarban, India

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Advances in Microbiology 2012年第3期2卷 234-240页

作者： Subhajit Das Minati de Dipnarayan Ganguly Tushar Kanti Maiti Abhishek Mukherjee Tapan kumar Jana tarun Kuma de department of Marine Science Calcutta University Kolkata India Maniktala Siksha Bhavan Kolkata India Microbiology Laboratory Department of Botany Burdwan University Burdwan India

In the Sundarban Mangrove forest microbial activities are dominantly involved in both the mineralization and decomposition processes that regulate nutrient profile in soil of different depth. It was found that besides changing the water and soil quality, monsoonal cycle plays a crucial role in regulating microbial population distribution in the mangrove soil. Statistical analyses revealed that organic carbon was the most significant factor that regulated the total microbial population. The cellulose degrading bacteria, [mean value of CFU 14.32 × 106 (gm dry weight of soil)–1] was dominant throughout the year. The sulfate reducing bacteria showed an increasing trend along depth with a minimum value at the surface i.e. 6.113 × 106 (gm dry weight of soil)–1 and 12.312 × 106 (gm dry weight of soil)–1 at a depth of 60 cm. Intensification of monsoonal cycle could heavily affect microbe dominated soil biogeochemistry and subsequent change in the regional ecology of the Sundarban Mangrove Forest.

关键词： Sundarban Mangrove Microbial Population Monsoonal Cycle Nutrient Concentration

A depth Wise Diversity of Free Living N<sub>2</sub>Fixing and Nitrifying Bacteria and Its Seasonal Variation with Nitrogen Containing Nutrients in the Mangrove Sediments of Sundarban, WB, India

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Open Journal of Marine Science 2013年第2期3卷 112-119页

作者： Subhajit Das Dipnarayan Ganguly Tushar Kanti Maiti Abhishek Mukherjee Tapan kumar Jana tarun Kuma de department of Marine Science Calcutta University Kolkata India Microbiology Laboratory Department of Botany Burdwan University Burdwan India

Mangrove provides a unique ecological niche to different microbes which play various roles in nutrient recycling as well as various environmental activities. The highly productive and diverse microbial community living in mangrove ecosystems continuously transforms dead vegetation and recycle nitrogen, phosphorus, sulphur and other nutrients that can later be used by the plants. Mangrove ecosystems are rich in organic matter, and however, in general, they are nutrient-deficient ecosystems, especially of nitrogen and phosphorus. The present study investigated depth wise variation of Nitrifying bacteria, Nitrogen fixing bacteria, total bacterial population along with nitrate-nitrogen, nitrite-nitrogen and other physicochemical parameters of soil during pre-monsoon, monsoon and post-monsoon periods at three different sampling stations of mangrove sediments viz. deep forest region, rooted region and unrooted region. The microbial population was also found maximum in the deep forest sediment relative to the other two sites. Populations of cultureable microbes were found maximum in surface soil and decreased with increase in depth in Sundarban mangrove environment. A decreasing trend of total microbial load, nitrifying and nitrogen fixing bacteria with increase in depth were recorded throughout the year. Present study revealed the relationship among depth integrated variations of physicochemical components (viz. soil temperature, pH, salinity, nitrite nitrogen and nitrate nitrogen concentration) and total microbial load, nitrifying and nitrogen fixing bacteria microbial populations.

关键词： Nitrifying Bacteria N2 Fixing Bacteria Bacterial Population Mangrove Sediment

Management of SARS-CoV-2 infection is a major challenge in patients with lymphoid malignancies: Warrants a clear therapeutic strategy

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World Journal of Virology 2022年第4期11卷 204-207页

作者： tarun Sahu Henu kumar Verma Bhaskar Lvks Physiology All India Institute of Medical ScienceRaipur 492001ChhattisgarhIndia department of Immunopathology Institute of Lung Health and ImmunityComprehensive Pneumology CenterHelmholtz ZentrumMunich 80331BayrenGermany Zoology Guru Ghasidas VishwavidyalayaBilaspur 495001ChhattisgarhIndia

Patients with lymphoid malignancies are at a higher risk of coronavirus disease 2019(COVID-19)infection due to their immunocompromised state and results in higher mortality rates in these ***-CD 20 therapy is one of the leading causes of immunosuppression that worsens in COVID-19 ***-19 vaccines,on the other hand,appear to be less beneficial to these *** treatment and recommendations are required for these COVID-19 patients with lymphoid malignancies.

关键词： COVID-19 Lymphoid malignancy Lymphoma Vaccination Immunosuppression

A phase Ⅱ study of gemcitabine and carboplatin combination chemotherapy in gallbladder carcinoma

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Hepatobiliary & Pancreatic Diseases International 2006年第1期5卷 110-114页

作者： Pramod kumar Julka tarun Puri Goura Kishore Rath department of Radiotherapy & Oncology

BACKGROUND: Patients with carcinoma of the gallbladder have advanced, unresectable tumor at the time of presentation and face a dismal prognosis in the absence of a standard palliative chemotherapy regimen. This study was undertaken to evaluate the efficacy and safety of combined chemotherapy of gemcitabine and carboplatin in 20 patients with advanced gallbladder carcinoma. METHODS: The criteria of eligibility included chemonaive patients with unresectable gallbladder cancer, bidimensionaIly measurable disease, Zubrod's performance status≤2, and adequate major organ function. The patients received gemcitabine (1000 mg/m^2) on days 1 and 8, and carboplatin (target AUC of 5.0 mg/ml) on day 1, in a 21-day cycle. CT was used for response assessment. RESULTS: In this group of 20 patients with advanced gallbladder carcinoma 6 were men and 14 women, with a median age of 55 years. The stage of the tumor at presentation was IVB in 14 patients (70%), IVA in 3 (15%) and Ⅲ in 3 (15%). Four patients (21%) achieved a complete response, and 3 (15.7%), a partial response; an overall response rate was 36.7%. The median time to progression of the tumor was 33.8 weeks, and 1-year survival rate of the patients was 43.3%. Anemia of WHO grade Ⅲ or Ⅳ was seen in 2 patients (10%) and 1 patient (5%), respectively. Grade Ⅲ neutropenia and thrombocytopenia were observed in 2 patients (10%) and 1 patient (5%), respectively. CONCLUSION: With mild toxicity, combined chemotherapy of gemcitabine and carhoplatin is effective in the treatment of advanced gallbladder carcinoma.

关键词： gallbladder cancer gemcitabine carboplatin

Intracranial Abscesses: An Institutional Study

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Open Journal of Modern Neurosurgery 2020年第2期10卷 297-306页

作者： Yogendra Singh tarun kumar Gupta Gaurav Jaiswal Krishna Lodha Neurosurgery department R.N.T Medical College Udaipur Rajasthan India

Background: Brain abscess is defined as a focal intracranial infection that is initiated as an area of cerebritis and evolves into a collection of pus surrounded by a vascularized capsule. These are complications of head trauma, neurosurgical operations, meningitis, and otogenic, mastoid, and paranasal air sinus infections. Management involves both medical and surgical treatment. Surgical management includes either aspiration or excision of lesions larger than 2.5 cm in diameter, depending on brain location. However, literature on surgical treatment is replete with several procedures which, on their own, may not determine outcome. Aim: Aim is to study the epidemiology, management and outcome of various treatment modalities of brain abscess in our institute. Material and Methods: We conducted a retrospective study of demographic data as well as indications, treatment modalities, and outcomes of various surgical procedures for evacuation of intracranial abscesses in patients admitted to our Neuro-intensive care unit at R.N.T. Medical College, Udaipur, Rajasthan, India from January 2013 to June 2019. Results: We carried out 53 procedures in 43 (30 male and 13 female) patients with various intracranial abscesses. Most abscesses [16, i.e. 37%] occurred in the second decade and second most common in the first decade [15, i.e. 34%]. In infants 4 (9%) cases of intracranial abscesses were present. None of the infants had features of congenital heart disease. The predisposing factors were mostly otolaryngologic (15) or posttraumatic (8). Most commonly abscesses were located in frontal 13 (30%) followed by cerebellar 9 (21%). Burr hole evacuation was done in 74% of cases. 3 patients (7% of cases) died. Prognosis appears to worsen with ventriculitis, multiple abscesses especially in infants, and immunosuppression. Conclusion: In conclusion, brain abscess still continues to be a formidable challenge, with prognosis that dramatically improved over the last decades due to advances

关键词： Brain Abscess Aspiration Cerebritis

A Mobile Ad-Hoc Routing Algorithm with Comparative Study of Earlier Proposed Algorithms

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International Journal of Communications, Network and System Sciences 2010年第3期3卷 289-293页

作者： kumar Verma Pawan Gupta tarun Rakesh Nitin Nitin Nitin 不详

A mobile ad-hoc network is an autonomous collection of mobile nodes that communicate over bandwidth constrained wireless links. Due to nodal mobility, the network topology may change rapidly and unpredictably over time. The routing protocols meant for wired network cannot be used for mobile ad-hoc network because of mobility of network. A number of routing protocols like destination-Sequenced Distance-Vector (DSDV), Ad-Hoc On-demand Distance Vector (AODV), Dynamic Source Routing (DSR), and Temporally Ordered Routing Algorithm have been implemented. The ad-hoc routing protocols can be divided into two classes;Table-Driven and On-demand. This paper examines two routing protocols for mobile ad-hoc networks—the destination Sequenced Distance Vector (DSDV), the table-driven protocol and the Ad-Hoc On- demand Distance Vector routing (AODV), an on-demand protocol and propose an algorithm that facilitates efficient routing of the packet and failure recovery

关键词： AODV DSDV Relative Performance

Distribution and Prevalence of dermatophytes in Semi-Arid Region of India

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Advances in Microbiology 2015年第2期5卷 93-106页

作者： Vishnu Sharma tarun kumar Kumawat Anima Sharma Ruchi Seth Subhash Chandra department of Biotechnology JECRC University Jaipur India Vardhaman Mahaveer Open University Kota India

Earth has been documented as a natural territory for fungi which cover individual kingdom with evolution. In subsequently vertebrates developed keratin which was a part of life as a structural aspect. Few moulds have skilled to digest keratin and crop up from soil and wastewater habitats. They take part as a keratinolytic agent in the purification of α-keratins with an incidence of disulphide and hydrogen bonds which are improperly biodegradable. The best moulds genera to decay of keratin are Microsporum, Trichophyton and Epidermophyton. The presences of these genera are open health issues in developing countries where they cause the mortal mycotic contagion. The reason behind this is perceived to be the poor hygienic environment and socioeconomic behaviour among people. The present review is a compilation of updated information concerning the nature of these keratinolytic moulds and abundances of most contributed developing countries including India.

关键词： Moulds Keratinophytes dermatophytes Keratinase Mycoses

Bacterial and fungal co-infection is a major barrier in COVID-19 patients:A specific management and therapeutic strategy is required

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World Journal of Virology 2022年第2期11卷 107-110页

作者： tarun Sahu Henu kumar Verma Lakkakula V K S Bhaskar department of Physiology All India Institute of Medical ScienceRaipur 492001ChhattisgarhIndia department of Immunopathology Institute of Lung Health and ImmunityComprehensive Pneumology CenterHelmholtz ZentrumMunich 85764Germany department of Zoology Guru Ghasidas VishwavidyalayaBilaspur 495001ChhattisgarhIndia

Microbial co-infections are another primary concern in patients with coronavirus disease 2019(COVID-19),yet it is an untouched area among *** data and systematic reviews only show the type of pathogens responsible for that,but its pathophysiology is still *** show that these microbial co-infections are hospital-acquired/nosocomial infections,and patients admitted to intensive care units with invasive mechanical ventilation are highly susceptible to *** with COVID-19 had elevated inflammatory cytokines and a weakened cell-mediated immune response,with lower CD4+T and CD8+T cell counts,indicating vulnerability to various *** this,there are only a few studies that recommend the management of coinfections.

关键词： COVID-19 Co-infection Bacterial co-infection Fungal co-infection

Maxillofacial trauma in a pregnant patient:Contemporary management principles with a case report&review of literature

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Chinese Journal of Traumatology 2020年第2期23卷 78-83页

作者： Geetha Sridharan Elavenil Panneerselvam Keerthana Ponvel Swetha tarun V.B.Krishna kumar Raja department of Oral and Maxillofacial Surgery SRM Dental College and HospitalRamapuram CampusRamapuramChennai 600089Tamil NaduIndia

Trauma during pregnancy deserves special attention because of its management objectives,***-being of both pregnant woman and *** trauma directly affects the nutrition of foetus by interfering with the normal functions in a pregnant woman such as mouth *** and breathing,Hence early restitution of form and function of maxillofacial skeleton is ***,the gravid status is associated with numerous anatomical and physiological changes which present with clinical dilemma related to imaging and treatment.A careful scrutiny of the patient's systermic and gestational status is absolutely essential before,during and after instituting any interventional *** present a case of bilateral condyle fracture in a 30-year-old pregnant woman in the third trimester(32 weeks).She was treated with inter maxillary fixation using orthodontic brackets&*** successful restitution of occlusion,the patient was advised aggressive physiotherapy which ensured normal mouth *** weeks later,the patient delivered *** patient was followed up at one month and 3 month and demonstrated restitution of normal occlusion,mouth opening and lower|acial *** article aims at analyzing the contermporary principles in management of maxillfacial trauma in a pregnant woman and clarifying the common misconceptions.

关键词： Trauma Pregnancy Foetus Condyle fracture