Articles

Differentiation of bone marrow cells in arthritic mice with decreased complement activity

Published on: 31st December, 2018

OCLC Number/Unique Identifier: 7985946206

There is evidence that complement components induce cell migration in mesenchymal stem cells and regulate cytokine production in osteoblastic cells thus playing a regulatory role in normal bone formation. The aim of the present study was to investigate the involvement of complement system in the differentiation of bone marrow cells in complement-depleted model of rheumatoid arthritis (RA). Arthritis was induced by intraarticular injection of zymosan in cobra venom factor (CVF)-treated mice depleted of functional complement. The expression of different markers by bone marrow [1], on fibroblasts (CD29), mesenchymal cells (CD105), dendritic cells (CD14, CD86), osteoclasts (CD265), cells expressing Dectin1 (CD369) and megakaryocytes (CD62P) was determined by flowcytometry. The lack of functional complement activity at the point of arthritis initiation (day 3) lead to an increase of fibroblast and megakaryocyte populations, to a decrease of mature and dectin1 positive populations, while the number of mesenchymal cells was not changed, all compared to arthritic mice. Immunohistochemical staining showed that low complement activity diminished arthritis-induced generation of megakaryocytes and platelets in BM. Chronic inflammation during erosive conditions such as rheumatoid arthritis, leads to dysregulated differentiation and prolifеration of bone cells, inflammation of synovial membrane and bone marrow, and degradation of cartilage and bone. Present results point that the lack of functional complement changed the ratio between different cell populations that can be used for determining the development and stage of rheumatoid arthritis and can help finding of new therapeutic approaches.
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Endogenous Ligands of Toll Like Receptors: A Danger Signal to the Brain Memory at High Altitude

Published on: 15th October, 2018

OCLC Number/Unique Identifier: 7877908260

Sojourn to high altitude may affect various human systems if proper acclimatization not followed. If acclimatization failed, sojourners may suffer with high altitude sickness such as acute mountain sickness (AMS), high altitude pulmonary edema (HAPE) and high altitude cerebral edema (HACE). Although a sojourner’s tolerance to high altitude hypoxia varies according to differences in physiology and physical conditioning. Acute mountain sickness may cause headache, insomnia, dizziness, nausea, vomiting and fatigue. While HACE is more serious stage where brain swelling occurs and it is potentially fatal. A sojourner with HACE may experience confusion, amnesia, delusions, and loss of consciousness. Staying in high altitude (above 9000 feet) environment poses low oxygen supply (hypobaric hypoxia) to the different body organs including brain.
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Lecture: “First aid to the population for wounds during accidents, сatastrophes, natural disasters, and terrorist attacks” for Humanitarian and Technical Universities

Published on: 19th July, 2019

OCLC Number/Unique Identifier: 9272394938

1. The concept of wounds. 2. Classification of wounds. 3. Signs of wounds. 4. Factors affecting the course of the wound process. 5. Phases of the wound process. 6. Types of wound healing. 7. Features of wounds in children. 8. First (first emergency) help. 9. Complications of wounds. 10. Specific bite wounds. Notion Treatment. Complications. 11. Snake bites. First aid. 12. Arthropod bites. First aid. Wounds are called traumatic violation of the integrity of the skin or mucous membranes with possible damage to the deeper tissues.
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Sensitivity and Intertextile variance of amylase paper for saliva detection

Published on: 12th February, 2020

OCLC Number/Unique Identifier: 8550282807

Contemporary forensic science hinges on DNA analysis to link an individual to a crime scene. Sources of DNA include bodily fluids, including saliva. Amylase is a primary enzyme in human saliva and thus, if detected, indicates possible presence of human saliva. Amylase paper can be used to map apparent saliva and thus provide a source from which DNA can be extracted and analyzed. In this study, the sensitivity of amylase paper was tested, firstly, using dilutions of an amylase standard and subsequently also tested using fresh human saliva. Three trials total were conducted, the first two using an amylase standard and a third using fresh saliva. The first two trials demonstrated firstly that detection of amylase is dependent on the material upon which amylase is deposited. The third trial demonstrated that amylase levels in human saliva may drop significantly somewhere around 48-72 hours. All trials were consistent in the concentration of amylase that Seratec Amylase Paper will detect.
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Expression of C-type Natriuretic Peptide and its Specific Guanylyl Cyclase-Coupled Receptor in Pig Ovarian Granulosa Cells

Published on: 22nd August, 2018

OCLC Number/Unique Identifier: 7844580667

Background: C-type natriuretic peptide (CNP) was isolated from porcine brain and is a 22-amino acid peptide which belongs to the natriuretic peptide (NP) family. Even though this peptide shares structural similarity to other endogenous NPs including atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) its receptor selectivity is different from other NPs. The present study was undertaken to investigate the expression of C-type natriuretic peptide (CNP) and its specific guanylyl cyclase (GC)-coupled receptor in the granulosa cells of the pig ovarian follicle. Results: Specific 125I-[Tyr0]-CNP(1-22) binding sites were localized in the granulosa cell layer of the ovarian follicle with an apparent dissociation constant (Kd>) and a maximal binding capacity (Bmax) of 1.41±0.39 nM and 2.75±0.65 fmol/mm2 respectively. Binding of 125I-[Tyr0]-CNP(1-22) to these sites was also prevented by atrial natriuretic peptide (ANP(1-28)), brain natriuretic peptide (BNP(1-26)) and des[Gln18,Ser19,Gly20, Leu21,Gly22] ANP(4-23) (C-ANP). Production of 3’,5’-cyclic guanosine monophosphate (cGMP) by particulate GC in the granulosa cell membranes was stimulated by natriuretic peptides (NPs) with a rank order of potency of CNP(1-22)>>BNP(1-26)>ANP(1-28). HS-142-1, a selective antagonist of the two recognized GC-coupled NPRs, inhibited CNP(1-22)-stimulated cGMP production in granulosa cell membranes in a dose-dependent manner. Also mRNAs for all three recognized NPRs were detected in granulosa cells using reverse transcriptase-polymerase chain reaction (RT-PCR). Serial dilution curves of granulosa cell extracts were parallel to the standard curve of synthetic CNP. Conclusion: These results indicate that CNP and its specific receptor are expressed in the granulosa cells of the pig ovary, and suggest that CNP may be a local autocrine and/or paracrine regulator via activation of its specific GC-coupled receptor, NPR-B.
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Age Estimation Reports: Where do we stand?

Published on: 25th October, 2019

OCLC Number/Unique Identifier: 8299657336

Age estimations process is not standardized worldwide. However, there is a wide agreement about the most suitable methods currently available. Up until now, the procedure of creating expert reports and to implement quality assurance in age estimation are variable. Aim: The aim of this paper was to examine expert age estimation reports from around the world and identify the similarities and shortcomings present, which will help in providing recommendations to improve the reporting to reach standardization in expert age estimation reports. Methods and Material: A questionnaire was developed to explore whether there is a universal consensus in writing age estimation reports. Countries participated in the survey were: Afghanistan, Australia, France, Indonesia, Italy, New Zealand, Norway, Paraguay, Saudi Arabia, Spain, Switzerland, United Arab Emirates, United Kingdom, and the United States of America. Areas investigated by the survey included: Information about the individual in question and the entity requesting the assessment, if age interval is given along with if statistics were described in the report, if population reference data are used and reported and finally if the format of the report is standardized within each country. Results: The results of this survey suggest that there is a high degree of individual variation in age estimation reports, sometimes even within the same country. While the majority of participants report the main findings, some important information is still missing. The statistical information remains extremely varied. Conclusion: Although a resolution is not obvious, it is hoped that this study will promote further research and discussion on reporting age estimation. International guidelines on quality assurance in age estimation reports are urgently needed. Information to be reported should be specified on an international level and the exact report format to be used could be left to the national societies.
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Radiofrequency ablation for snoring and sleep apnoea

Published on: 5th June, 2019

OCLC Number/Unique Identifier: 8165593317

Radiofrequency proves to be a useful tool for snoring/ sleep apnoea cases. Its advantage includes relative precision in incision making, relative bloodless fields if used appropriately, decrease postoperative pain and excellent healing with fibrosis which aids in stiffening tissues. Radiofrequency is high frequency alternating current used to ablate (cut/coagulate) tissues. It can be applied to nasal turbinates, soft palate, tongue base, tonsils etc. and it can be used to perform various procedures in the cutting mode to improve obstructive sleep disordered breathing. The objective/aim was to assess efficacy of radiofrequency as a tool for procedures/surgeries for snoring/ sleep apnoea. The parameters assessed were post-op pain, post- op blood loss, reduction in subjective snoring sounds by patients and partner, reduction in AHI post operatively.
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Massive gastrointestinal bleeding; never too old to be due to Meckel’s Diverticulum - A case report and literature review

Published on: 3rd June, 2019

OCLC Number/Unique Identifier: 8165450550

Gastrointestinal (GI) bleeding is a very common medical problem encountered in the acute care setting, and is a major cause of admission to hospitals with about 300,000 patients admitted annually. Obscure GI bleeding, defined as persistent or recurrent bleeding following initial negative upper and lower endoscopy, represents approximately 5% of all GI hemorrhages. The small bowel is the most common source for obscure GI bleeding. Variable lesions of the small bowel can cause obscure GI bleeding, with tumors, Crohn’s disease and Meckel’s diverticulum being more common in young age group. Meckel’s diverticulum, the most common GI congenital malformation, is usually asymptomatic and incidentally found. It can present with GI bleeding, seen more in pediatric patients, and rarely in adult patients. Herein, we present a 45 years old female patient, presenting with massive obscure GI bleeding due to Meckel’s diveticulum.
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The Immunitary role in chronic prostatitis and growth factors as promoter of BPH

Published on: 25th April, 2018

OCLC Number/Unique Identifier: 7666286870

In the actual medical therapy of BPH, we can see: antibiotics, alpha blockers, 5-ARI, fitotherapeutics/natural products (Serenoa repens) with different which display clinical activities and other molecules such as FANS (local or systemic dosage forms) cortisones and others. Relationship between immune systems and chronic prostatitis are strictly involved in BPH progression. A vicious cycle that involve chronic flogosis, tissue remodeling, grow factors, inhibition of apoptosis, and other phenomena. Observing BPH pathogenesis under an immunologic point of view make possible to search new pharmacological strategies, to improve actual therapy. The aim of this work is to observe some relevant literature in our opinion related the management of BHP and its progression under a pharmaceutical and immunological point of view. A deep knowledge in the pharmaceutical properties of some molecules (antimicrobials, anti-phlogosis agents, Anti-androgenic agents, alpha blockers, 5-ARI and other treatments, techniques, interventions or instruments) can help the physicians to pick the right choice.
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Correlate alcohol and toxicology analysis with Urinary Bladder Distension on Post-mortem Computed Tomography (PMCT): A Validation Study

Published on: 17th January, 2018

OCLC Number/Unique Identifier: 7347018053

Urinary bladder distension is traditionally regarded as a sign of intoxication at autopsy, however, to date there is very little literature available to support this hypothesis. The purposes of our study were to correlate alcohol and/or toxicological analysis with calculated urinary bladder volumes and its sensitivity as well as to test the validity by using the radiologically calculated urinary bladder volumes (UBVs) from CT images. The study population was all the postmortem cases involving with blood and/or urine samples sent for alcohol and/or toxicology analysis in 2016 at the Kuala Lumpur Hospital. Out of that 485 cases, there were 127 postmortem cases retrieved with positive alcohol and/or toxicology results Positive toxicology results in this study was referring to drug of abuse (DoA) including amphetamine type stimulants, opiates, cannabis and ketamine. Urinary bladder volume (UBV) was calculated based on the equation used in ultrasonographic volumetry, V=axbxcx 0.5. These 3 parameters correlated well with the UBV and having a strong positive relationship. There was a significant positive correlation at low strength between alcohol concentrations with calculated UBV. There was statistical significant correlation between urinary bladder distension on postmortem CT and cases of intoxication especially more corresponding for positive alcohol detection. The average sensitivity was 35.65% whereby it was slightly lower than those reported in Rohner C, et al. In this study we have deduced that diuretics effect of alcohol was the main reason causing bigger urinary bladder or UBV and was more prominent than the influence of drug of abuse on the urinary bladder sphincter. The distension of urinary bladder should raise suspicion of intoxication, but would not provide information on the quantity of the intoxicating agent due to its significant but poor correlation. It was important to note that intoxication may also be present in cases with low urinary bladder volume. In conclusion, it is vital to consider circumstantial evidence, as well as the presence of additional findings on imaging before suggesting the diagnosis of intoxication based on urinary bladder distension on imaging. Currently, the use of CT bladder imaging should serve as a strong indication that the individual may be intoxicated but should be confirmed by a complete autopsy and a detailed toxicological analysis.
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