The poor rate of drug discovery for the control of Neglected tropical diseases (NTDs) including schistosomiasis has necessitated effective management of existing drugs by modulating their delivery. Nanotechnology-based colloidal drug carriers have been explored to improve the activity and safety profile of drugs for NTDs including parasitic diseases. In developing new drug delivery systems for schistosomiasis, research efforts have focused mainly on Praziquantel (PZQ) as the sole antischistosomal agent in current clinical practice. Carrier systems of the polymer, inorganic and lipid-based type have been investigated for the delivery of PZQ. However, promising results were obtained using lipid-based delivery systems including liposomes, solid lipid nanoparticles, nanostructured lipid carriers and nanoemulsions. Selection of these lipid carrier systems has been based on the lipophilicity of PZQ, controlled drug release, potential increase in its bioavailability by promoting lymphatic absorption to bypass the extensive first pass effect biodistribution to the host liver and enhancement of PZQ interaction with the worm tegument of a similar phospholipid nature.
Sakina Salem Mohammed Saadawi(2-2022)

Background: The fat extracted from the nut of the African Shea tree (Vitellaria paradoxa) is called Shea butter. It has multiple uses at the local level as it is used in cosmetic products and as a cocoa butter substitute in chocolate industries. It has a high nutritious value and is also a valuable product on the local, national, and international markets, making it the ideal candidate to research and invest in. Aim: This study is a comparative experimental study of the possible burn healing effects between imported South African raw Shea butter and samples in a Libyan market. Method: The control samples were brought from South Africa (Benin traditional markets). A total of 18 different samples were collected from different sale centers in Tripoli, including pharmacies, beauty shops, and spices shops, in addition to one sample brought from Poland. Animal experiment on burn healing effect was carried out on nine male Sprague Dawley (350–400 g) rats aged 6–8 weeks old. After shaving the animal’s dorsum hair, a metal cube was used to create a deep second degree burn wound, and the cube was heated to 100°C for 20 seconds. Medication with Shea butter (control, T1, and T2) was initiated daily for one for these groups by the application of a thin film of the Shea butter samples on the burned areas. On days 1, 3, and 7, the rats were anesthetised and a sample from the burned scar tissue and skin adjacent were evaluated using pathological parameters. Results: The histological study indicates that the use of Shea butter T1 as topical treatment induces an immune response, which enhances the form of the presence of a large number of inflammatory cells in the epidermis and dermis layers. The treatment of burned skin with T2 lasted for 72 hours and it showed slightly significant healing in the normal structure of proliferative granulation tissue with accumulation of fibroblasts and inflammatory cells surrounding the sebaceous glands and hair follicles. Small areas of the epidermis which formed few layers were observed and some hair roots were grown. This was well seen in cases of T1 and T2. Shea butter bought as raw might have a bad effect on burned skin. Conclusion: Shea butter bought as raw might have bad effect on burned skin. On the other hand, the sample from Poland had a therapeutic effect, which was because of the additives such as avocado oil, grape seed oil, and others. arabic 18 English 101
Sakina Salem Mohammed Saadawi, Soad Ali Abdulsalam Treesh, ٍSuhera Mehemed Abdulsalam Aburawi, , , (11-2020)

تلعب الأعشاب دائماً الدور الرئيسي في الطب التقليدي في المجتمعات القديمة حول العالم، وزادت شعبيتها مرة اخرى ليست فقط في الدول النامية، ولكن أيضاً في الدول المتقدمة، حيث أن الناس يكافحون للبقاء أصحاء في وجه المرض باستخدام الأدوية الطبيعية التي تعمل متناغمةً مع دفاعات الجسم. وعلى نحو متزايد أيضاً تم تجميع الأدلة العلمية لإثبات أن طب الأعشاب قادر على تقديم معالجة فعالة كالأدوية الحديثة ولكن ببعض التأثيرات الجانبية، ولذلك ارتفعت مبيعات الأدوية العشبية بشكل مفاجئ حتى أصبحت الآن العديد من شركات الأدوية تصنع وتسوق المنتجات العشبية. في ليبيا، ممارسة طب الأعشاب توسعت ولكن بدون تطور موازي في المعايير الوطنية وطرق التقييم الملائمة، ولهذا من الأهمية التأكيد على أنه لم تكن هناك دراسات طويلة المدى على مراقبة الجودة، ومراقبة التسويق وتنظيم التحضيرات العشبية المصنعة والمستوردة إلى حد كبير،حيث أنه لا توجد حتى الآن جهة مسئولة لمتابعة التصنيع الجيد وتوحيد معايير التحضير العشبي للحصول على منتجات ذات جودة عالية. ولهذا كان الهدف الرئيسي من هذه الدراسة الحالية تركيز الأضواء على هذه المشكلة بالتقييم ومراقبة الجودة لخمسة أدوية عشبية مختارة من السوق الليبي. بدأ التقييم لهذه المنتجات بفحص تعريف المنتج، تقييم لحجم الجزيئات وانتشارها، التقييم المجهري فحص الخواص الفيزيائية، تقييم لمحتوى الرطوبة، قيمة الرماد، دراسة للخواص الكيميائية والفحص الكروماتوغرافي لإثبات الجودة وتبيان ما إذا كانت مغشوشة أم لا . ومرت المنتجات بفحوصات أعقد مثل فحص التلوث الميكروبي، والكشف عن المواد الغريبة، السموم الفطرية الأفلاتوكسينات المعادن الثقيلةِ بقايا المبيدات الحشرية والكشف النوعي للنشاط الإشعاعي لضمان سلامتها. أشارت النتائج إلى أن كل الأدوية العشبية غير صالحة للتداوي بها فهي تُجمع وتُجَهز بدون طرق علمية حيث أن بعضها تجاوزت العدد القانوني للنباتات المسموح بها في كل منتج بالإضافة لعدم إدراج كم وحدة لكل نبات في الخلطة، وعدم ذكر التأثيرات الجانبية لها. علاوة على ذلك وجدت ثلاث منتجات لا تحتوي على أرقام التسجيل، ولهذا معظمها لم تستوفِ المتطلبات الأساسية للجودة والأمان، حيث تجاوز البعض الحد المسموح به في قيم الرماد، وثلاثة منها تحتوي على نشاط إشعاعي بعد الفحص النوعي لها. Abstract: Herbs which have always been the principal form of traditional medicine in the old societies around the world, have again become popular not only in the developing countries, but also in the developed world, where people strive to stay healthy in the face of illness with natural medicines that work in concert with the body defenses. Increasingly too, scientific evidence are accumulating to show that herbal medicine can provide treatment that is effective as conventional medicine but with few side effects. Therefore, sales of herbal remedies have grown dramatically and several mainstream pharmaceutical firms now manufacture and market the herbal products. In Libya the practice of herbal medicine was developed but without parallel development in the national standards and appropriate evaluation methods so it is important to emphasize that there have been no long-term studies of the quality control, marketing monitor, that highly regulate the imported and manufactured of herbal remedies. There are no regional organized mechanisms for good manufacturing practices (GMP) and standardization of good herbal preparation. Thus the main target of presented study is to focus on this problem by conducting evaluating and conducting quality control for five selected herbal remedies sold in the Libyan market. Starting with labeling estimation, evaluation of particle size distribution, microscopic evaluation, organoleptic evaluation, moisture content, ash valuesphytochemical screening and chromatographic screening for adulteration to prove their quality. While more complicated determinations as; microbial and foreign materials detection, such as aflatoxins, pesticide residues, heavy metals, and radio activity were performed as well to prove safety. The results indicated that all the selected herbal remedies do not comply with the pharmacopoeias standard. They are exceeding the legal number of plants and their labels are not listing how many units of each plant in the products and neither any adverse effect was mentioned. Moreover three of the samples did not contain batch numbers, while most of them did not fulfilling the basic requirements for the quality and safety. They exceed the allowed ash values and three of them contained radioactivity after qualitative determination.
رجب عبد السلام التريكي (2009)