Showing posts with label Open Access Journal of Biomedical Engineering and Biosciences. Show all posts
Showing posts with label Open Access Journal of Biomedical Engineering and Biosciences. Show all posts

Tuesday, 3 October 2023

Lupine Publishers | Evaluation of the Physicochemical and Thermal Properties of Antimony: Influence of the Energy of Consciousness Healing Treatment

 Lupine Publishers | Journal of Biomedical Engineering and Biosciences


Abstract

Antimony and its compounds are mainly used in the preparation of paints, flame-proofing materials, ceramic enamels, pottery, and glass as well as in the treatment of leishmaniasis. This study analyzes the effect of the Trivedi Effect®-Consciousness Energy Healing Treatment on the physicochemical and thermal properties of antimony in comparison to the untreated sample. The sample was divided into control and treated parts. The control part has not received any treatment; while the treated part was received the Trivedi Effect®-Consciousness Energy Healing Treatment by a renowned Biofield Energy Healer, Dahryn Trivedi, remotely. The particle size distribution of the treated antimony powder at d10, d50, d90, and D (4,3) was significantly altered by 4.05%, -1.40%, 11.92%, and 7.69%, respectively, compared to the control sample. Therefore, the treated sample showed a significant decrease in the specific surface area by 20.24% than the control sample. The powder X-ray diffraction peak intensities of the treated sample altered ranging from -58.50% to 10.38%; while the crystallite sizes were reduced ranging from of 14.07% to 48.70% compared with the control sample. The average crystallite size of the treated sample was also significantly reduced by 28.90%, compared to the control sample. The total weight loss was decreased during thermal degradation of the treated sample by 2.68%; however, the residue weight was significantly increased by 8.75% compared to the control sample. The maximum thermal degradation temperature was significantly increased in the treated sample by 11.49% (~60ºC) compared to the control sample. The overall study indicated the reduced surface area, altered crystalline properties, and improved thermal stability of the antimony sample after the Trivedi Effect®-Consciousness Energy Healing Treatment. Therefore, the Biofield Energy Treatment could be considered as a novel approach for generating a new polymorph of antimony that might help in improving its appearance, bioavailability, flowability, and thermal stability in comparison to the untreated sample. The Biofield Energy Treated antimony might be proved as beneficial in developing more efficacious nutraceutical/pharmaceutical formulations as well as in the heavy industries for the production of alloys, fire retardant, solders, electrical cables, microelectronics, bullets, plain bearings, etc.

Keywords: Antimony; Consciousness Energy Healing Treatment; The Trivedi Effect®; Particle Size; Crystallite Size; Weight Loss

Introduction

Antimony (Sb) is a silvery white metal in appearance and its compounds are mainly used in the preparation of paints, flame-proofing materials, ceramic enamels, pottery, and glass. However, its compounds have also been used medically after they were introduced in the 14th century by the alchemist John of Rupescissa [1]. The antimony compounds have main pharmacological use in the treatment of the parasitic diseases, leishmaniasis, and schistosomiasis. In 1631, the compound of antimony, potassium antimony tartrate, has been introduced by the German alchemist, Adrian Von Mynsicht; however, after that, the antimony compounds lost their value due to their toxic properties [2]. Later on, during 1918-1920, the interest in such compounds revived after the establishment of the medicinal value of tartar emetic by Christopherson and Rogers [3]. Since then, the antimony compounds have been used for the treatment of schistosomiasis and leishmaniasis. The examples of antimony compounds used in the treatment of schistosomiasis include sodium antimony dimercaptosuccinate, sodium antimony tartrate (astiban, stibocaptate), and sodium antimonyl gluconate, etc. [4,5]. Nowadays, the medicinal use of antimonials has been largely restricted to the treatment of leishmaniasis [6,7]. The antimony compounds that have been used in chemotherapy can be broadly divided into two classes:

a) carbon-antimony bond containing compound such as 4-acetylaminobenzenestibonic acid (Stib-acetin) and 4-aminobenzenestibonic acid (Stibamin);

b) antimony-oxygen or antimony-sulphur bonds containing compounds that further form an antimoniate ester.

The examples of such compounds included the trivalent and pentavalent antimonials, e.g., triostam, meglumine antimonate (glucantime), pentostam, stibocaptate, urea stibamine, stibophen, sodium antimony dimethylcystein, and MSb B, etc. [8]. Besides, the use of antimonials has also been evident as emetics [9]. The antimony compounds are also used in various veterinary preparations as a skin conditioner in ruminants, e.g., lithium antimony thiomalate and anthiomaline. It has a nourishing effect on the keratinized tissues in animals [10]. It was also reported that the compounds of Sb (III) might show antitumor activities with amino polydentate carboxylic acids for some metal ions coordinates such as, O, Ba, Bi, Co, Mn, Cu, Ni, Sn, Pb, and Zn [11]. The scientific studies reported that the in vivo application of such compounds showed an increase in the life span of mice induced with Ehrlich ascites tumour and spindle sarcoma [12,13]. The ADME profile of any drug has been decided mainly by its physicochemical properties such as melting point, solubility, partition coefficient, and crystalline properties, etc. play Thus, the scientific researches these days focus those approaches that might help in enhancing the efficacy and biological activities of drug by altering the physicochemical properties [14]. The Consciousness Energy Healing Treatment is such kind of approach that is used these days to modify the physicochemical, crystalline, and thermal properties of drugs for improving their role in the body [15-18]. The concept of Biofield Energy Healing is widely accepted as an alternative integrative approach due to its ability to correct the root cause of the diseases and thereby improve the quality of life [19- 21]. In the same manner, the Trivedi Effect®- Consciousness Energy Healing Treatment has also been reported for its beneficial impact in various fields. A human has the ability to transmit the energy to any living organism(s) or nonliving object(s) around the globe by harnessing it from the universe. The object or recipient that receives the energy always responds in a useful way. This process is known as the Trivedi Effect® - Biofield Energy Healing Treatment [22,23]. Various research studies reported the beneficial impact of The Biofield Energy Treatment in the field of biotechnology [24,25], antimicrobial activity [26-28], nutraceuticals [29,30], agriculture and productivity [31,32], bone health [33], cancer research [34], skin health [35], and metals, chemicals, ceramics and polymers [36- 38], etc. This study has the objective to establish the impact of the Trivedi Effect® on the physicochemical and thermal properties of antimony by using various analytical techniques.

Materials and Methods

Chemicals and Reagents

The test sample antimony was purchased from Parshwamani Metals, Mumbai, Maharashtra, India and the other chemicals used in the experiments were purchased in India.

Consciousness Energy Healing Treatment Strategies

The antimony sample used in the study was first divided into two parts. The first part of sample was not received the Biofield Energy Treatment and considered as the control sample. Besides, the second part of sample was received the Trivedi Effect®-Energy of Consciousness Healing Treatment under standard laboratory conditions for 3 minutes and known as the treated antimony sample. This Biofield Energy Treatment was provided remotely through the healer’s unique energy transmission process by the well-known Biofield Energy Healer, Dahryn Trivedi, USA, to the test sample. Later on, the control sample was treated with a “sham” healer for comparison purpose, who did not have any awareness about the Biofield Energy Treatment. Finally, both the samples were kept in sealed conditions and characterized using PSA, PXRD, and TGA/DTG analytical techniques.

Characterization

The particle size distribution (PSD) analysis of antimony powder was performed with the help of Malvern Mastersizer 2000 (UK) using the wet method [39,40]. The powder X-ray diffraction (PXRD) analysis of antimony powder also performed with the help of Rigaku MiniFlex-II Desktop X-ray diffractometer (Japan) [41,42]. The crystallites size was calculated using the Scherrer’s formula (1)

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Where G is the crystallite size in nm, k is the equipment constant, β is the full-width at half maximum, λ is the radiation wavelength, and θ is the Bragg angle [43]. Similarly, the thermal gravimetric analysis (TGA) of antimony powder was performed with the help of TGA Q50 TA instruments [44]. The % change in specific surface area, particle size, crystallite size, peak intensity, weight loss and the maximum thermal degradation temperature of the treated antimony powder was calculated compared with the control sample using the following equation 2:

lupinepublishers-openaccess-journal-environmental-soil-sciences

Results and Discussion

Particle Size Analysis (Psa)

The impact of the Biofield Energy Treatment on the particle size distribution and surface area of antimony powder were performed and the results were compared with the particle size data of the control sample (Table 1). The particle sizes at d10, d90, and d (4, 3) of the treated sample were observed to increase by 4.05%, 11.92%, and 7.69%, respectively; while the particle size at d50 was slightly reduced by 1.40%, as compared to the control sample. The significant increase in the particle size resulted in the reduced surface area of the treated sample by 20.24% after the Biofield Energy Treatment, in comparison to the control sample. It was previously reported that the particle sizes of compounds might increase after increasing the thermal energy. Thus, it could be assumed that the Biofield Energy Treatment might increase the thermal energy within the molecules of antimony sample, which helps in decreasing the nucleus densities and thereby resulted in the increased particle size [45,46]. Besides, the increased particle size might be associated with the improved shape, flowability, appearance, and compactibility [47,48] of the treated sample as compared to the control sample.

Table 1: Particle size distribution of the control and treated antimony.

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Powder X-Ray Diffraction (PXRD) Analysis

The PXRD analysis was done in both the samples and the corresponding diffractograms are presented in (Figure 1). The diffractogram of the control and treated sample showed sharp and intense peaks that indicated their crystalline nature. The further study analyses the changes in the intensities of peaks, and the corresponding crystallite sizes between the control and treated sample (Table 2). The treated sample showed significant changes in the peak intensities and corresponding crystallite sizes. The intensities of the treated sample were altered ranging from -58.50% to 10.38%; while the crystallite sizes were decreased ranging from 14.07% to 48.70%, as compared to the control sample. Also, the treated sample showed a significant reduction in the average crystallite size (290.63 nm) by 28.90% in comparison to the control sample (408.75 nm). The significant alteration in the intensities and crystallite size indicated the altered crystalline structure and morphology of drug that might be possible due to the new polymorph generation of antimony powder [49,50] after the Biofield Energy Treatment. Moreover, it was reported that the polymorphic form of the compound might be helpful in improving the bioavailability and efficacy profile of the drug [51]. Therefore, the treated sample might show better bioavailability and efficacy than the control sample.

Figure 1: PXRD diffractograms of the control and treated antimony.

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Table 2: PXRD data for the control and treated antimony.

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Thermal Gravimetric Analysis (TGA)/ Differential Thermogravimetric Analysis (DTG)

The TGA/DTG technique helps in establishing the thermal degradation and stability profile of the sample. In this study, this technique helps in analysing the difference in the thermal stability profile of the treated sample compared to the control sample. The TGA thermograms (Figure 2) of the control and treated samples showed significant weight loss during their thermal degradation. The data indicated that the total weight loss of the treated sample was reduced by 2.68% after the Biofield Energy Treatment in comparison to the control sample (Table 3). Such a reduction in the weight loss signifies the increase in the residue weight of the treated sample by 8.75% after the thermal degradation, compared to the control sample. Such changes in the thermal degradation pattern might be attributed to the significant increase in the particle size of the treated sample after the Biofield Energy Treatment as the large sized particles might reduce the thermal degradation, compared to the control sample [52]. The DTG thermograms of both the samples, i.e., the control and treated samples were showed a single peak in both the thermograms (Figure 3). The peak present in the thermograms of both the samples (Tmax) denoted the temperature at which maximum thermal degradation has taken place. The results revealed that the Tmax of the treated sample was significantly increased by 11.49% (~60o C) as compared to the control sample. Hence, it could be suggested that the thermal degradation of the treated sample was reduced after the Biofield Energy Treatment in comparison to the control sample. Thus, the overall analysis indicated the improved thermal stability profile of the treated sample as compared to the untreated sample. It would be more important in the pharmaceutical industry as well as in the heavy industries for the production of alloys, fire retardant, solders, electrical cables, microelectronics, bullets, plain bearings, etc.

Figure 2: PXRD diffractograms of the control and treated antimony.

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Figure 3: DTG thermograms of the control and Biofield Energy Treated antimony.

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Table 3: TGA/DTG data of the control and treated samples of antimony.

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Tmax = the temperature at which maximum weight loss takes place in TG or peak temperature in DTG.

Conclusion

In this study, the Trivedi Effect®-Consciousness Energy Healing Treatment has been shown its significant impact on the physicochemical and thermal properties of antimony sample in comparison to the untreated sample. The particle size distribution of the Biofield Energy Treated antimony powder at d10, d50, d90, and D (4,3) was significantly altered by 4.05%, -1.40%, 11.92%, and 7.69%, respectively, compared to the control sample. Therefore, the Biofield Energy Treated sample showed a significant decrease in the specific surface area by 20.24% than the control sample. The powder X-ray diffraction peak intensities of the Biofield Energy Treated sample altered ranging from -58.50% to 10.38%; while the crystallite sizes were reduced ranging from of 14.07% to 48.70% compared with the control sample. The average crystallite size of the Biofield Energy Treated sample was also significantly reduced by 28.90%, compared to the control sample. The total weight loss was decreased during thermal degradation of the Biofield Energy Treated sample by 2.68%; however, the residue weight was significantly increased by 8.75% compared to the control sample. The maximum thermal degradation temperature was significantly increased in the Biofield Energy Treated sample by 11.49% (~60ºC) compared to the control sample. Hence, the overall study indicated the significant impact of the Trivedi Effect®-Consciousness Energy Healing Treatment on the antimony powder that might form a novel polymorph of antimony with improved appearance, compatibility, and flowability along with increased thermal stability as compared to the control antimony sample. Thus, the Biofield Energy Treated antimony could be used in the novel pharmaceutical/ nutraceutical preparations with improved performance and efficacy profile for the treatment of disorders such as leishmaniasis, and other uses such as emetics, veterinary preparations, skin conditioner in ruminants, and anti-tumor agent, etc. Besides, it can be more useful in heavy industries for the production of alloys, fire retardant, solders, electrical cables, microelectronics, bullets, plain bearings, etc.

Acknowledgement

The authors are grateful to Central Leather Research Institute, SIPRA Lab. Ltd., Trivedi Science, Trivedi Global, Inc., Trivedi Testimonials, and Trivedi Master Wellness for their assistance and support during this work.


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Tuesday, 8 August 2023

Lupine Publishers | Role of Complementary and Alternative Medicine In Treatment and Prevention of Obesity; Molecular Strategies to Recommended Acceptance

 Lupine Publishers | Journal of Biomedical Engineering and Biosciences


Introduction

The incidence of obesity is increasing at an alarming rate which has led to a surge the obesity-related morbidity in the world. It is now a most evident problem in world’s population therefore, it needs to be addressed [1]. According to WHO, obesity is defined as BMI equals to or greater than 30 kg/m2 which is the accumulation of fat in adipose tissue to such an extent that may be fatal [2]. Obesity is now replacing malnutrition, infectious and contagious diseases as the most vital contributor to ill health. The obesityrelated health problem poses a burden on the health care system and lowers the quality of life of obese people. Particularly, it causes many chronic conditions like hypertension, cardiovascular diseases, diabetes type, kidney stones, respiratory issues, gout, arthritis, stroke, chronic fatigue sleep disorders and certain types of cancer such as breast and prostate cancer [2,3].The epidemic of obesity is due to a sedentary lifestyle, minimal or no physical activity, intake of saturated fatty acid, high calories carbohydrates, carbonated drinks, and preserved food and sometimes genetic involvement is susceptible [4] .Without modifying lifestyles through culture and environment, it would be difficult to attain healthy life patterns. Improved patient health, quality of life and reduced cost of care of patients with obesity and other obesity-related health issues will not be recovered and resolved by clinical interventions alone [5-7]. Obesity or overweight is always perceived to be due to high levels of calories intake and low level of physical activity, therefore, lowcalorie diet and enhance physical activity is presumed to be the foremost treatment for obesity. Although increased physical activity helps obese patients to combat various health problems or even lowers the risk of coronary artery diseases, hypertension, diabetes, and stroke. However, there are some other methods which help patients to fight obesity under restricted or non-restricted diet patterns [8,9]. There is new literature for the chronic care model which integrates both clinical and community system to address chronic problems, for instance, the use of complementary and alternative medicine [10]. National Centre for Complementary and Alternative medicine elaborated the term Complementary and alternative medicine as “a collection of diverse medical and healthcare system, practices, and products which are not considered as a current health care system” [11]. Due to increased public awareness through mass media, advertisement, and internet, people nowadays, are more attractive towards the use of comparative and alternative treatment to reduce weight and to get rid of body fat. Social pressure regarding body weight/size and desire to look smart compels obese subjects to use complementary and alternative medicine and they are massively used due to their short term and early effects [6,11]. In recent years, CAM therapies are widely used in addition to conventional medical treatment and people thought that they are extremely effective. However, until now, there are inadequate researches regarding the effectiveness and efficacy of CAM therapies for reducing weight and most of the current literature have fundamental methodological problems, they have significant health benefits along with major healthrelated risk factors [6]. When it comes to reducing weight and becoming smart, there is a wide range of complementary medicines available in the form of herbal supplements, they have little effect. Moreover, they help to reduce weight and as soon as you left those medicines, you will gain more weight than ever before so, this is one of the serious and alarming side effects of using complementary medicine. Examples include the use of herbal products, dietary supplements and over the counter medicine for shedding weight, although they have adverse side effects significant effect can be achieved when used in combination with allopathic medicine [12]. Furthermore, people are more inclined towards the ancient practices such as dry needling: acupuncture; visits to complementary clinicians like naturopaths, homeopaths, and chiropractors; and meditative and thoughtful practices such as Reiki, yoga, massage, and tai chi. They may have adverse effects and can cause physical injury as well. Therefore, there is the impetus for physician knowledge of CAM strengths versus drawbacks and collaborative integration of CAM in clinical practice of physicians so that maximum benefit could be achieved [13,14]. Although, it is one of the vital factors to teach and educate medical students at universities and hospitals about CAM; which can be assumed as a “bottom-up” approach for preparing the health care system for improved integration of CAM. However, “top-down” changes are required and suggested to enhance patient care and health [15]. The top-down approach proposes to better illustrate CAM’s role in contemporary health care, modifications must originate from governing organizations and administrations in the form of clearer recommendations. There is no clear agreement with the medical community regarding the efficacy of CAM therapies [15,16]. There is a serious need to discuss at social and legislative levels to even include it as an integrated part of the curriculum in the medical syllabus and also as a complementary framework in medicinal and health sciences under specific clear outcomes. It is very important to have approval and commandments for the use for Cams so that physician should recommend CAM in specific circumstances. This inconsistency advocates a lack of consistency in the consideration of therapeutic effects of CAM when publishing these guidelines and may feed underlying negative insights of the validity of CAM within the medical community [17-20]. In such cases where the efficacy of certain medications has proven scientifically should be recommended by the physician based recommended combination of CAM with traditional medicines. For instance, if a plant like Hoodia Gordonii, which is a member of the Asclepiadaceae (the milkweed family), is associated with appetite inhibition and few scientific studies are conducted on chief features (bioactivity of its biological ingredients, clinical application, in vivo biopharmaceutics, and safety) of this anti-obesity plant. Obviously, this has brought about a considerable concern, as H. gordonii is among the most popular organic anti-obesity products. In such cases, where the efficacy of certain medications has evidenced scientifically; should be recommended by physicians a recommended combination of CAM with traditional medicines [21]. Diet and deficiency of exercise are the old reasons for obesity, and in the last two decades, genetic factors are under research and identification to be involved in obesity [22]. Mutations happen in the genes by naturally or hereditary to have a role in the obesity syndromes’ (e.g., Bardet– Biedl syndrome) for example, but there is no clear pathway explaining the role of the intact gene in causing obesity [20,23]. Studies in humans showed the role of specific mutations in intact genes in severe human obesity, for example, Hyperphagia and impaired T-cell–mediated immunity in both mice and humans beside infertility are examples of leptin deficiency hormone under mutations [24,25]. One of the products studied previously to be effective against obesity are green tea leaves derived from Camellia Sinensis has shown to have It has polyphenols (catechins) as main bioactive molecules. These bioactive molecules increase energy consumption, triggering the oxidation, and sympathetic nervous system of fat metabolism, and for the alternative pathway, results in high production of enzymes responsible for hepatic fat oxidation, appetite prevention, and reduced nutrient absorption [26]. Another dietary supplement produces from the dehydrated Garcinia Cambogia fruit rind, which has a hydroxycitric acid, used in southern India. G. Cambogia product manages the sense of satiety and appetite by it is the mechanism of ATP-dependent citrate lyase enzyme, which exchanges the citrate to acetyl-CoA and oxaloacetate [27]. Several previous studies showed the effect of green tea catechins (GTCs) and green tea on the gene and protein expression in obesity. Another study showed that the catechin-rich diet increased the expression of the medium-chain acyl-CoA dehydrogenase (MCAD) and acyl-CoA oxidase (ACO), which decreasing the fat accumulation and enhancing hepatic β-oxidation activity [28,29]. On the other hand, also there are studies showing its role in lipogenesis, including fatty acid synthase (FASN), and adipogenesis, including CCAAT/enhancer-binding protein alpha (C/EBPα), liver X receptor alpha), and (LXR-α peroxisome proliferator-activated receptor gamma (PPAR-γ) [28]. Use of Complementary and alternative therapies are progressively increasing because the general population perceived them to be active in helping to ease some of the health challenges associated with obesity. Patient’s knowledge and involvement, personal attributes, health beliefs, attitude to CAM and medical history are principally accountable for the increased use of cam rather than socio-demographic factors and socio-economic status. CAM therapies for the obese people should be extensively investigated in well-controlled experimental research settings to deliver safety and effective data on treatments, as well as authenticated treatment options for those with obesity-related morbidity [30]. Looking into the current scope of obesity and its high incidence in different populations, there is a need to specify the reported evidence for CAM therapies as per type of obesity and mechanisms involved in obesity [31]. Role of inflammation and genes involved can play a vital role not only in metabolically stabilization of obese subjects but also at the same time to decrease their BMI to make them socially more stable and acceptable [32].


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Tuesday, 13 June 2023

Lupine Publishers | Unique Anatomy of the Spleen of One Humped Camel (Camelus Dromedarius): A Review

 Lupine Publishers | Open Access Journal of Biomedical Engineering and Biosciences


Abstract

Over the past years, defensive immunity has been recognized as having an important role as a front-line mechanism and as an integral part of the adaptive immune response. Immunity in One Humped Camel (Camelus dromedarius) exposed too many diseases are spleen-dependent. In this review, we discuss the general aspects of the gross anatomy of the spleen (both internal and external), based on location, position, relation, blood supply and innervations of the organ. The micro-architecture of the camel anatomy was discussed using eosin and hematoxylene stain and the cells visible in the aspect of normal tissue histology. The aim of the write-up is to examine the anatomy of the different sections in the spleen of the one-humped camel (Camelus dromedaries).

Keywords: Defensive Immunity; Camelus Dromedarius; Spleen; Gross Anatomy; Histology

Introduction

Camelids originated in North America, where they are now extinct, and did not reach the Old World until about two million years ago [1]. Camels belong to the suborder Tylopoda of the Artiodactyls (even-toed ungulates, along with pigs). Within their current native range of North Africa and central and western Asia the one-humped camel or dromedary (Camelus dromedarius) is a highly revered species, used for food, fibre, and racing [2]. The species reportedly has no known natural predators throughout this range. Australia is the only country in which camels have established a feral population, and is now the only location where the species lives in natural populations [3]. Spleen, located between the stomach, left kidney and diaphragm, the spleen is the largest lymphoid organ in the body, performing functions for the blood similar to those performed by the lymphnodes for the lymph [4]. It is a soft organ, conforming to the contours of the organs and structures surrounding it. At the hilus on the visceral surface, the splenic artery brings blood into the spleen, the splenic vein takes blood from the spleen to the hepatic portal system, and lymphatic drain lymph from the spleen.[5]. In some domestic species such as the horse and dog, the spleen functions as a reservoir from which blood can be mobilized when needed and in these species, smooth muscle is a prominent feature of the capsule and traberculae of the spleen [6].

Structure

The spleen represents the largest reticulo-endothelial accumulation in the body [6]. It has a thin fibrous capsule, to which the peritoneum adheres intimately. The fibrous tissue of the capsule extends into the spleen to form a series of traberculae between which lies the splenic pulp [5]. The spleen has an extensive blood supply consisting of traberculae arteries, central arteries, penicillar arteries, sinusoids, red pulp veins, and traberculae veins [7]. It is surrounded by a capsule, has traberculae, and is divided into red and white pulp. The spleen is very vascular and has red and white pulp [3].

Embryologically

The spleen develops in the dorsal mesentery of the stomach (dorsal mesogastrium). The spleen arises from cells of the mesentery, which migrate into the plane between the layers of the mesentery [8]. The mesentery covering the spleen becomes the visceral peritoneum of the spleen. The mesentery between the spleen and the gut tube becomes the gastrosplenic ligament. The mesentery between the spleen and the dorsal body wall becomes the splenorenal ligament (most of which subsequently fuses to become parietal peritoneum) [9].

Grossly

The spleen is about the size of the cupped hand. If forms the left lateral extremity of the lesser sac [10]. The spleen is a peritoneal organ in the upper left quadrant that is related to the left 9th, 10th, and II the ribs. Clinically, fracture of these ribs may injured or lacerate the spleen. The Spleen is located in the upper left abdominal quadrant. Unlike the lymph node, the spleen is inserted in the blood stream. The spleen clears the blood of aged blood cells and foreign material. It is the site of an immune response to bloodborne antigens, especially in children. In adults, the spleen is not essential to life.

In general, white pulp is the site of antibody synthesis and lymphocyte production. Red pulp is chiefly concerned with the removal and destruction of worn out erythrocytes. In as much as the spleen lies above the costal margin, a normal-sized spleen is not palpable. Enlarged spleen may be palpated below the left costal margin. The splenic artery and vein reach the hilus of the spleen by traversing the splenorenal ligament. Passing from it are the gastrosplenic ligament to the greater curvature of stomach (carrying the short gastric and left gastroepiploic vessels) and the lienorenal ligament to the posterior abdominal wall (carrying the splenic vessels and tail of the pancreas) [5]. The spleen is a peritoneal organ in the upper left quadrant that is related to the left 9th, 10th, and II the ribs. Fracture of these ribs may lacerate the spleen [5]. In as much as the spleen lies above the costal margin, a normal-sized spleen is not palpable. The enlarged spleen may be palpated below the left costal margin. The splenic artery and vein reach the hilus of the spleen by traversing the spleno-renal ligament.

Relations:

a) Ventrally: The left diaphragm, separating it from the pleura, left lung and the 9th, 10th and 11th ribs.

b) Cranially: The stomach.

c) Dorsally: The splenic flexure of the colon.

d) Medially: The left kidney.

The tail of the pancreas abuts against the hilum of the spleen through which vessels and nerves enter and leave this organ Figure 1.

Figure 1: Lymph Node Structure.

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Histologically

The structure resembles the lymph node except in some anatomical aspect, which includes; only efferent lymphatic drain the spleen. The sinusoids are blood vascular not lymphatic. As a result, all cells entering the spleen do so via the blood. Scattered primary nodules (germinal centers) are found throughout the spleen. These contain abundant lymphocytes and make up the “white pulp” (also known as Malpighian corpuscles). Plasma cells and macrophages are found here as well. Surrounding the white pulp nodules are venous sinuses containing abundant erythrocytes - the “red pulp”. These sinuses are lined with macrophages (RE cells) which are highly phagocytic. Between the sinuses are cords of cells - lymphocytes, monocytes and macrophages - referred to as the Cords of Billroth. The immune function of the spleen is especially important in infancy and early childhood. At these times, the rest of the lymphoid system is somewhat underdeveloped Figure 2.

Figure 2: Photomicrograph of Camel Spleen showing clearly differentiated zones of white pulp (A) and Red pulp (B) cells with inter parenchymal traberculae collagen connective tissue fibers (Red arrow) H&E x200.

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Microscopically, the spleen appears to consist of discrete 0.5-1 mm white nodules, called the white pulp, embedded in a red matrix called the red pulp. Microscopically, as shown here, the white pulp WP consists of lymphoid aggregations and the red pulp RP, making up the bulk of the organ, is a highly vascular tissue [10]. The spleen has a thin fibroelastic outer capsule C from which short traberculae T extend into the parenchyma Figure 3. The capsule is thickened at the hilum and is continuous with supporting tissues that sheath the larger blood vessels entering and leaving the organ. In dogs and horses the spleen is also a reservoir of blood and these supporting tissues contain smooth muscle to pump blood out, but in humans only a few smooth muscle cells persist Figure 4. The splenic artery divides into several major branches, which enter the hilum and branch to form numerous arterioles. [11].

Figure 3: Photomicrograph of Camel Spleen showing clearly differentiated zones of white pulp (A) and Red pulp (B) cells with communication of paranchymal traberculae connective tissue fibers connective tissue (Red arrow) and thick connective tissue fibers capsule (Yellow arrow) H&E x200.

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Figure 4: Photomicrograph of Camel Spleen showing clearly zones of white pulp (A) and Red pulp (B) cells with developed inter-paranchymal traberculae collagen connective tissue fibers (Yellow arrow) H&E x200

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An overview of the splenic ultra-structure and circulation is shown in Figure 1 above; blood enters the spleen in the splenic artery which branches repeatedly within the parenchyma [5]. The larger arteries are surrounded by a fibrocollagenous sheath that disappears in the smaller branches. These central arteries A, are so named because they have a cylindrical cuff of lymphoid tissue around them, the periarteriolar lymphoid sheath PALS, consisting mainly of TH cells. The central artery gives off a number of short branches at right angles, which are called penicilliary arteries PALS and these terminate in two to three sheathed capillaries with only one is shown for each penicilliary artery [7]. These unique vessels are small blind-ending capillaries with no endothelial lining but surrounded instead by an aggregate of macrophages. Thus the blood arriving in a sheathed capillary must traverse this wall of macrophages before entering the red pulp RP. The sheathed capillaries therefore form the first part of the filtering mechanism of the spleen [6]. The splenic white pulp is of two types, T cell and B cell, together making up 5-20% of the total mass of the spleen. The functions of these areas appear to be similar to those of the paracortex and superficial cortex of lymph nodes respectively. The non-filtering areas of red pulp parenchyma as probably be considered part of the splenic lymphoid tissue mass also, but its immunological function remains to be elucidated [12].

White Pulp

White pulp consists of lymphoid tissue that unsheathes the central arteries (periarterial sheath) along with the associated nodules and germinal centers. The periarterial sheath is populated mainly by T lymphocytes [9]. The peripheral white pulp and germinal centers are populated mainly by B lymphocytes. In the white pulp, the T cell areas surround the central arteries, forming the periarteriolar lymphoid sheath. In humans, this lymphoid tissue is less well organized than in other animals, but the term PALS persists [12].

Red Pulp

Red pulp consists of splenic cords of Billroth and venous sinusoids [8]. Defective red blood cells resulting from aging or disease (as in sickle cell anemia, hereditary spherocytosis, or thalassemia syndromes) are delayed in their passage from Billroth cords into the venous sinusoids and phagocytosed by macrophages lining the cords. The splenic parenchyma is permeated by an interconnected network of sinuses S that drain in turn into larger sinuses, tributaries of the splenic vein and finally the hepatic portal vein [3]. The sinuses are lined by endothelial cells resting upon a basement membrane with numerous narrow slits. The reticulin fibers of the sinusoidal basement membrane are arranged in a circular fashion and are continuous with the reticulin meshwork of the parenchyma [1].

Blood Supply

The splenic artery is one of the three main branches of the coeliac axis. The splenic vein is joined by the superior mesenteric to form the portal vein [6]. Blood cells entering the parenchyma from the sheathed capillaries squeeze through the walls of the sinuses to drain out of the organ via the splenic vein, an arrangement known as the open circulation [4]. Note that the splenic vessels also provide the principal blood supply of the pancreas. [6].

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Wednesday, 22 August 2018

Cervical Cancer, Types of Diagnosis and Recent Treatment Methodologies: (OAJBEB) - Lupine Publishers


Cervical Cancer, Types of Diagnosis and Recent Treatment Methodologies by Anusha Sudulaguntla, Jeffin Thomas, Aji KU, Gifty Merin Chacko and Donamol Abraham in Open Access Journal of Biomedical Engineering and Biosciences (OAJBEB) in Lupine Publishers

Cervical cancer is one of the most common cancers among women in developing countries. Human papilloma virus (HPV) with sexually transmitted infection is the major causative agent and risk factor for developing cervical cancer. Women aged between “21-65 years” are the major risk group for cervical cancer. Increase in incidence and mortality rate due to cervical cancer, led to interventions for preventing and screening of this disease. Pap smear and HPV test are the two major screening techniques. According to National Cancer Institute, HPV vaccines can prevent cancerous and pre-cancerous cases infected by high risk HPV. Recent advancement by targeting specific genes provides new scope in the treatment of cervical cancer.


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Binding Model of Antidiabetic Constituents from Capsosiphon fulvescens with Human Aldose Reductase: (OAJBEB) - Lupine Publishers


Binding Model of Antidiabetic Constituents from Capsosiphon fulvescens with Human Aldose Reductase by Ogunwa Tomisin Happy in Open Access Journal of Biomedical Engineering and Biosciences (OAJBEB) in Lupine Publishers

The use of seaweeds as functional foods and drugs is well known. Capsosiphon fulvescens (C. fulvescens) is a green sea algafor which beneficial health impacts have been reported even in diabetes. In the present study, three C. fulvescens constituents (chalinasterol, capsofulvesin A and capsofulvesin B) were evaluated for their molecular binding signature and interaction patterns against human aldose reductase as an antidiabetic target. The enzyme has been robustly implicated in the development of secondary complications of diabetes. The results generated here with the aid of in silico tools revealed a favourable binding affinity for the seawed constituents on the active site of aldose reductase. However, detailed observation shows no interference with the NADP binding pocket. The binding configuration of capsofulvesin A and capsofulvesin B were comparable to fidarestatas the compounds inserted one of their elongated aliphatic long chains with double bondsinto the binding pocket. Nonetheless, subtle differences were sighted with the binding format of the aliphatic chain of capsofulvesin B resulting froma possiblehydrophobic hinderanceor influence within the binding pocket. Only one of the aliphatic chainsof capsofulvesin A enjoyed hydrophobic interaction with residues Val47, Trp219 and Phe122 compared to the capsofulvesin B having hydrophobic interaction with Phe122 at the second chain while the other aliphatic chain formed hydrophobicbond with Trp20, Val47, Trp219 and Leu300. Meanwhile, the galactoseunit of the two compounds displayed similar binding orientation and interaction with amino acid residues Ser22 and Trp20 at the active site. Chalinasterol, on the other hand, established hydrogen bond with the imidazole ring of His110 and indole ring of Trp111 respectively. The current study represents the first attempt to model the interaction of these ligands with aldose reductase and theunique bindingpatterns might explain the mechanism and potency of C. fulvescens in themanagement of diabetes and its complications.
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