Articles

Radiation-induced salivary gland damage/dysfunction in head and neck cancer: Nano-bioengineering strategies and artificial intelligence for prevention, therapy and reparation

Published on: 20th December, 2022

Saliva is produced by and secreted from salivary glands. It is an extra-cellular fluid, 98% water, plus electrolytes, mucus, white blood cells, epithelial cells, enzymes, and anti-microbial agents. Saliva serves a critical role in the maintenance of oral, dental, and general health and well-being. Hence, alteration(s) in the amount/quantity and/or quality of secreted saliva may induce the development of several oro-dental variations, thereby the negatively-impacting overall quality of life. Diverse factors may affect the process of saliva production and quantity/quality of secretion, including medications, systemic or local pathologies and/or reversible/irreversible damage. Herein, chemo- and/or radio-therapy, particularly, in cases of head and neck cancer, for example, are well-documented to induce serious damage and dysfunction to the radio-sensitive salivary gland tissue, resulting in hypo-salivation, xerostomia (dry mouth) as well as numerous other adverse Intra-/extra-oral, medical and quality-of-life issues. Indeed, radio-therapy inevitably causes damage to the normal head and neck tissues including nerve structures (brain stem, spinal cord, and brachial plexus), mucous membranes, and swallowing muscles. Current commercially-available remedies as well as therapeutic interventions provide only temporary symptom relief, hence, do not address irreversible glandular damage. Further, despite salivary gland-sparing techniques and modified dosing strategies, long-term hypo-function remains a significant problem. Although a single governing mechanism of radiation-induced salivary gland tissue damage and dysfunction has not been yet elucidated, the potential for synergy in radio-protection (mainly, and possibly -reparation) via a combinatorial approach of mechanistically distinct strategies, has been suggested and explored over the years. This is, undoubtfully, in parallel to the ongoing efforts in improving the precision, safety, delivery, and efficacy of clinical radiotherapy protocols/outcomes, and in designing, developing, evaluating and optimizing (for translation) new artificial intelligence, technological and bio-pharmaceutical alternatives, topics covered in this review.
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Optimization of the fermentation process, characterization and antioxidant activity of exopolysaccharides produced from Azotobacter As101

Published on: 20th December, 2022

Azotobacter was selectively isolated and purified from the soil samples of Xinjiang Salt Lake Scenic spot, the fermentation technology of exopolysaccharides (EPS) by Azotobacter was optimized, and the antioxidant activity of exopolysaccharides (EPS) was studied. The bacteria were isolated and purified from the soil samples by the scribing method and the 16SrRNA gene was used for molecular identification. The carbon source, fermentation time, inoculation amount and pH of target bacteria in the exopolysaccharides (EPS) fermentation process were optimized through single-factor experiments and their antioxidant activity was measured. Eight types of Azotobacter were isolated and purified from the soil samples of Salt Lake scenic spot. Among them, As101, which showed 99.58% homology with Azotobacter salinestris, was selected as the target strain. Through single-factor experiments which used exopolysaccharides (EPS) yield and exopolysaccharides content as indexes, the optimal conditions for the As101 fermentation process were determined as follows: fermentation temperature 35, fermentation time 96h, pH 7 and mannitol as carbon source. Exopolysaccharides content from Azotobacter salinestris  was 61.35% and the yield was 6.34 g/L. The results of the exopolysaccharides (EPS) antioxidant activity experiment under optimal conditions showed that As101 EPS had excellent scavenging ability against DPPH free radical, ABTS free radical and hydroxyl free radical, with IC50 values of 6.11 mg/ml, 2.42 mg/ml and 9.57 mg/ml, respectively. As101 with high yield and high exopolysaccharides content was isolated from saline soil in a special environment of Xinjiang, and the EPS obtained showed excellent antioxidant activity. The Azotobacter found in this study would provide the material basis for further opening up the adsorption of exopolysaccharides on heavy metals and the improvement of saline-alkali soil and contribute to further understanding of the structure and other activities of exopolysaccharides derived from Azotobacter.
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Is the informed consent form only a symbolic document in clinical trials?

Published on: 19th December, 2022

Being one of the basic principles of clinical research, informed consent is definitely a legal responsibility and ethical duty for health professionals.
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A case of allergic bronchopulmonary aspergillosis complicated by nocardiosis and staphylococcus aureus infection

Published on: 19th December, 2022

Nocardia is a ubiquitous organism and often causes serious fatal infections in immuno-compromised individuals. Staphylococcus aureus infection stimulates an inflammatory response that causes lung damage and facilitates subsequent chronic infection. Patients of allergic bronchopulmonary aspergillosis (ABPA) on steroids and immunosuppressants are particularly at risk of these infections. We present the case of a middle-aged man who was diagnosed to have ABPA by serological and radiographic criteria. He presented with fever, cough, and mucopurulent sputum. Subsequent sputum culture for bacteria and fungus revealed the growth of Staphylococcus aureus and Nocardia spp. respectively.
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To evaluate the stress response to tracheal intubation by macintosh laryngoscope and intubating laryngeal mask airway

Published on: 19th December, 2022

Aim: To evaluate the hemodynamic changes and side effects during endotracheal intubation with Macintosh laryngoscope and intubating laryngeal mask airway.Materials and methods: A prospective, simple randomized, comparative study on 100 patients 18 years - 60 years of age, divided into two groups: Group A comprising intubation with Macintosh laryngoscope and Group B intubation through ILMA.Results: Total intubation time (in seconds) of group A was 24.38 + 3.26 seconds and of the group, B was 42.94 + 1.24 seconds. At 2,4 and 6, a higher rise in mean heart rate was noted in group A (p < 0.05). At 2,4,6 and 8 minutes difference in mean SBP and mean DBP of the two groups was statistically significant with a p - value of < 0.05 with a significant increase of mean SBP and mean DBP in patients of group A. The difference for all complications was not significant between the two groups.Conclusion: Intubation via intubating laryngeal mask airway can be done as an alternative to direct laryngoscopy using a Macintosh blade as intubation via intubating laryngeal mask airway has shown to have lesser hemodynamic changes.
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The value of medicine innovation

Published on: 15th December, 2022

Innovation is the usage of strain for development in healthcare. Predominant component science and sturdy personal quarter opposition have given a beginning to a revolution in new health technology. These are converted by using rigorous making an attempt into medicines, vaccines, devices and diagnostics that can additionally be used efficiently in numerous affected character populations. Innovation starts off evolved with invention and depends upon tasks. it truly is on the flip pushed via the incentives that have interaction with the private quarter in pursuit of a social welfare objective, greater fitness for all by ability to create the large majority of a new medication on the market nowadays, the non-public vicinity has created a unique - however fragile - mannequin for innovation that consists of with it sensible outcomes for the management of a load of sickness. Fitness-related applied sciences enhancements led thru the introduction of today’s medicine are estimated to have decreased human mortality with the resource by upwards of 50% between 1960 and 1990 [1]. Every advanced and growing international region has demonstrated this benefit. All areas have made improvement in human enhancement global places has dropped by way of extra than 1/2, from 1.1 billion in 1975 to five hundred tens of hundreds of thousands in 1999 [2]. accelerated global immunization insurance engaging in 80%-90% of infant inner the past due Nineteen Nineties [3] has had a giant effect at the infant mortality price, which all via the remaining 25 years fall thru 50% in the least developed global locations. Four for this cause Pharmaceutical innovation has been a necessary thing in assisting governments to reap their primary healthcare coverage desires.
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Recovery of craniofacial proportions using the Nuvola Op System protocol

Published on: 9th December, 2022

The stomatognathic apparatus is currently understood as a complex functional unit in its muscular, skeletal, dental, and neurological parts; in particular, it is now commonly acknowledged that the craniofacial district is connected to the type of occlusion not only functionally but also morphologically. Occlusion is the result of the adaptation of dental organs that can adapt through the periodontium and cranial bones through sutures, with the “neurological direction” of the function and tone of the perioral, lingual, and craniocervical muscles
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Bioinformatics as a modern tool in forensic science for data understanding & investigation in research

Published on: 8th December, 2022

Modern-day biology is witnessing a data explosion with a vast amount of information generated from ongoing genome and sequencing projects. The abundance of data from genome sequences, functional genomics and another high throughput (HTP) technique with the potential of computing has led to rising of a new discipline namely ‘bioinformatics’. Bioinformatics is a young but fast-growing field for biological data collection, organization, interpretation, and modeling. Tools and techniques for bioinformatics are derived from multidisciplinary combinations of varied disciplines from natural and physical sciences. Previously various disciplines were carved out as and when sufficient specialization was achieved. However, now bioinformatics is borne out of an alliance between existing disciplines from life and non-life. Bioinformatics encompasses new foundations for the collection, organization, and mining of gene/ protein sequences, three-dimensional structures, and biochemical functions, for modeling biological processes of functioning cells. DNA sequencing performed on an industrial scale has produced a vast amount of data to analyze. Although the Human Genome Project is officially over, improvements in DNA sequencing continue to be made. The field of forensic science is increasingly based on biomolecular data and many European countries are establishing forensic databases to store DNA profiles of crime scenes of known offenders and apply DNA testing.
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A two-phase sonographic study among women with infertility who first had normal sonographic findings

Published on: 15th December, 2022

Introduction: Sonographic scan tests are real-time procedures but the female reproductive systems are subject to continued changes beyond the mid-menstrual period. Therefore a second test may be useful after mid-menstrual ultrasound tests among women with infertility who first had normal ultrasound tests during the mid-menstrual period. Aim: The aim of this study is to find out whether physiological changes beyond the mid-menstrual period in the female reproductive system could develop into findings that could be missed at the first ultrasound test among women with infertility during mid menstrual period. Method: One hundred and forty (140) women participated in this study, over a period of 12 months. The inter-observer correlations were carried out. The ultrasound test measured the diameters of the endometrium and ovarian follicle. The study was carried out during the mid-menstrual cycle when normal changes are optimal. The subjects were women of childbearing age (18 years - 40 years) with 28 days cycles who were referred from the fertility clinic. Women who had previous pelvic surgery, women on fertility therapy, and women who were unsure of the date were excluded from the study. Only women who met the inclusion criteria were selected for the study. The selection was by convenience sampling method. The women underwent the first phase of the ultrasound test during the mid-menstrual cycle. Those who had ultrasonographic-positive infertility reports were returned to the referral clinic. Only women who had normal ultrasonographic fertility reports were included in the second phase of further ultrasonographic tests. The scans were carried out further for four days for this second phase study and the result was again compared with normal values. (Endometrium Normal range 7.4 mm - 13.5 mm and ovarian follicles normal range 17.4 mm to 23.5 mm). Results: The first phase of the scan showed 108 (77%) of the women had positive infertility results for endometrium and ovarian follicles, while 32 (23%) of the women had a normal ultrasonographic result and were rescanned over days. The findings of the second phase scan showed that 10 subjects (7.30%) showed new abnormalities, Findings were distributed in three sub-groups in this second phase of the study. Sub-group A, 4 (2.67%) had enlarged unruptured follicles, sub-group B, 6 (4.30%) had an endometrial cavity filled with fluid, sub-group C, 22 (15.70%) subjects still had normal scans who may be referred for other studies. Conclusion: Women with infertility who had a normal scan at the mid-menstrual cycle should be followed up with a second-phase ultrasound scan before other tests.
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Ovarian lymphoma – A rare presentation

Published on: 6th December, 2022

Non-Hodgkin's lymphoma involving the ovaries is unusual and may cause confusion for the clinician since its presentation could resemble other, more frequent tumors. Malignant lymphoid cells may occur in the ovary either as a primary neoplasm or as a secondary manifestation of a disseminated occult or known disease. The most common presenting symptoms or signs of malignant lymphomas involving the ovaries are abdominopelvic pain or mass. 
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