Terezinha Pinto

• MS, PhD
• Professor (Full) at University of São Paulo

Introduction: Alzheimer's disease (AD) stands as significant challenge in realm of neurodegenerative disorder. It is characterized by gradual decline in cognitive function and memory loss. It has already expanded its prevalence to 55 million people worldwide and is expected to rise significantly. Unfortunately, there exists a limited therapeutic o...

A contaminação por endotoxinas é uma ameaça à segurança dos produtos farmacêuticos, especialmente dos medicamentos parenterais. Qualquer produto farmacêutico estéril e/ou livre de pirogênios requer especificações regulatórias para garantir a segurança de uso para o paciente. Este estudo abrange o estudo de avaliação de desempenho empregando o kit c...

Age-related macular degeneration (AMD) is a significant factor contributing to serious vision loss in adults above 50. The presence of posterior segment barriers serves as chief roadblocks in the delivery of drugs to treat AMD. The conventional treatment strategies use is limited due to its off-targeted distribution in the eye, shorter drug residen...

Airway remodelling occurs in chronic respiratory diseases (CRDs) such as asthma and chronic obstructive pulmonary disease (COPD). It is characterized by aberrant activation of epithelial reparation, excessive extracellular matrix (ECM) deposition, epithelial-to-mesenchymal transition (EMT), and airway obstruction. The master regulator is Transformi...

PurposeLittle attention has generally been given to non-sterile pharmaceutical manufacturing, because these products represent less microbial contamination risks compared to parenterals. Nevertheless, an extensive risk management program is required to prevent risk to patients and incidence of complaints or product recalls. Few scientific studies d...

The use of polysaccharides in preparation of microbially triggered colon-targeted delivery system has been explored extensively to deliver drugs at the colonic site. This type of targeting is attributed to inherent property of polysaccharides by virtue of which they are digested in the gut only by the colonic microflora. In last two decades, the us...

Background Non-condensable gases (NCGs) are all gases that do not undergo liquefaction during the saturated steam sterilization process. During a sterilization cycle, the NCGs presence inside the chamber is one of the biggest threats to the sterilization process compromising process validation and product quality. Methods In this work, 170 testing...

Editorial on the Research Topic: Advanced therapeutic delivery for the management of chronic respiratory diseases

Mucus gel constitutes of heavily cross-linked mucin fibers forming a viscoelastic, dense porous network that coats all the exposed epithelia not covered with the skin. The layer provides protection to the underlying gastrointestinal, respiratory, and female reproductive tracts, in addition to the organs such as the surface of eye by trapping the pa...

Background Infectious diseases have the highest mortality rate in the world and these numbers are associated with scarce and/or ineffective diagnosis and bacterial resistance. Currently, with the development of new pharmaceutical formulations, nanotechnology is gaining prominence. Methods Nanomicelles were produced by ultrasonication. The particle...

Introduction: Diabetes mellitus (DM) is the most common metabolic disease and multifactorial, harming patients worldwide. Extensive research has been carried out in the search for novel drug delivery systems offering reliable control of glucose levels for diabetics, aiming at efficient management of DM. Areas covered: Polymeric micelles (PMs) as...

Lung cancer is a leading cause of cancer-related deaths globally. Availability of successful anticancer agents in the market is limited and the development process of a new drug molecule is slow and difficult. The currently available commercial formulations are not sufficient to produce desired therapeutic response within a specific time limit. The...

Abstract Dialysis has been widely used in the treatment of patients with chronic kidney diseases and is considered a global public health issue. This treatment, which has changed the prognosis and quality of life in patients with chronic renal failure, can lead to complications that are often fatal. For this reason, there is a need for validation o...

Central venous catheter (CVC) is a medical device widely used in therapeutics to avoid repetitive venipuncture. Although its use is advantageous, it is possible to highlight limitations, such as the risk of catheter-related bloodstream infections, caused by excessive manipulation and even the urgency at the time of insertion. These factors lead to...

Advanced Drug Delivery Systems in the Management of Cancer discusses recent developments in nanomedicine and nano-based drug delivery systems used in the treatment of cancers affecting the blood, lungs, brain, and kidneys. The research presented in this book includes international collaborations in the area of novel drug delivery for the treatment...

Inflammation is the natural defense mechanism within the human body to combat and eliminate hazardous stimuli, such as irritants, pathogens and damaged cells. Although inflammation can be beneficial in the resolution of injury, chronic inflammation is a concern, as chronically inflamed tissues often amplify the inflammatory response by recruiting i...

Measurement uncertainty represents the confidence level in the result. To estimate the expanded measurement uncertainty, the standard deviation of intra-laboratory reproducibility of 48 heterotrophic bacterial count assays by fluorescence detection by the use of fluorogenic substrate on artificially contaminated purified water samples between 10 an...

Polymeric nanoparticles (NPs), dealing with structures less than 1 billionth of a meter, began to enter into mainstream sciences and technology some 20 years ago. Biomedical applications of NPs include the development of drug delivery systems (DDSs) in cancer. Among these applications, different materials and production methods have been reported,...

Azole frameworks serve as privileged scaffolds in the contemporary drug design paradigm owing to their unique physicochemical profile that promotes the development of highly selective, physiological benevolent chemotherapeutics. Several azole nuclei function as bioisostere in medicinal chemistry and prompt the development of tailored therapeutics f...

A incerteza de medição representa o nível de confiança no resultado. Para a estimativa da incertezade medição foi empregado o cálculo do desvio padrão da reprodutibilidade intralaboratorial de 48ensaios de contagem de bactérias heterotróficas pela técnica da membrana filtrante com detecçãopor fluorescência pelo uso de substrato fluorogênico em amos...

Majority of the representative drugs customarily interact with multiple targets manifesting unintended side effects. In addition, drug resistance and over expression of the cellular efflux‐pumps render certain classes of drugs ineffective. With only a few innovative formulations in development, it is necessary to identify pharmacophores and novel s...

Aging is one of the principal risk factors that play an important role in several human conditions and pathogenesis, primarily neurodegenerative disorders, such as amyotrophic lateral sclerosis (ALS), Parkinson’s disease (PD), and Alzheimer’s disease (AD). A progressive loss of neurons, reduced motor or behavioral functions, and abnormally aggregat...

RESUMO Introdução: A qualidade microbiológica da água tratada para hemodiálise está diretamente relacionada à ocorrência de infecções e de reações pirogênicas nos pacientes. Objetivo: Determinar o tempo de incubação mínimo e avaliar o desempenho do método microbiológico alternativo para a contagem de bactérias heterotróficas em água de hemodiálise...

Mucoadhesive based pulmonary drug delivery is an advanced novel intervention against several pulmonary diseases including asthma, chronic obstructive pulmonary disease, cystic fibrosis, etc. Mucoadhesive polymers are required to prolong the residence time of the drug to promote drug absorption via mucosa at a controlled rate in order to enhance the...

Introduction: In hemodialysis, patients are exposed to a large volume of water, which may lead to fatal risks if not meeting quality standards. This study aimed to validate an alternative method for monitoring microbiological quality of treated water and assess its applicability in dialysis and dialysate analysis, to allow corrective actions in rea...

Failure on the water treatment poses hemodialysis patients at risk of injury and death. Identifying if the patients are exposed to water quality related microbiological risks is an important objective to reduce the mortality for chronic renal patients and is the main issue of this study. We evaluated the microbiological water quality used by 205 di...

Introduction: Thymoquinone (TQ), 2-isopropyl-5-methylbenzo-1, 4-quinone, the main active constituent of Nigella sativa (NS) plant, has been proven to be of great therapeutic aid in various in vitro and in vivo conditions. Despite the promising therapeutic activities of TQ, this molecule is not yet in the clinical trials, restricted by its poor biop...

Purpose The traditional methods described in pharmacopeias most commonly used by the pharmaceutical industry are easy to perform and the costs are affordable, but they require long periods of time to obtain the results and often do not present sensitivity for recovering microorganisms in vulnerable physiological states known as viable but noncultur...

Macrophages are considered as the most flexible cells of the hematopoietic system that are distributed in the tissues to act against pathogens and foreign particles. Macrophages are essential in maintaining homeostatic tissue processes, repair and immunity. Also, play important role in cytokine secretion and signal transduction of the infection so...

Background: Levocetirizine, active R (-) enantiomer of cetirizine, is an orally active and selective H1 receptor antagonist used medically as an anti-allergic. Allergic rhinitis is a symptomatic disorder of the nose induced by inflammation mediated by immunoglobulin E (IgE) in the membrane lining the nose after allergen exposure. Objectives: The...

Objective: The current work was attempted to formulate and evaluate the topical sustained release delivery systems called cubosomes containing Tretinoin for the acne treatment. The recent patents on various formulations of tretinoin (EP0408370A2) helped in selecting a new formulation and evaluation. Methods: Tretinoin loaded cubosomes were prepare...

Although contact lenses are promising platforms for ocular drug delivery and have been extensively studied for that purpose, the influence of sterilization methods on these systems remains barely investigated. In this work, a silicone-based hydrogel was produced and loaded with different ophthalmic drugs: levofloxacin, chlorhexidine, diclofenac and...

The sterility test described in pharmacopeial compendia requires a 14-day incubation period to obtain a valid analytical result. Therefore, the use of alternative methods to evaluate the sterility of pharmaceuticals, such as the Celsis AKuScreen™ Advance™ system, is particularly interesting because it allows a reduced incubation period and higher e...

Glioblastoma, also known as glioblastoma multiforme, is the most common and worldwide-spread cancer that begins within the brain. Glioblastomas represent 15% of brain tumors. The most common length of survival following diagnosis is 12 to 14 months with less than 3% to 5% of people surviving longer than five years. Without treatment, survival is ty...

Extended Abstract The development in targeted drug delivery involving nanotechnology is one of the leading research area in the treatment of cancer. The nanoparticles play a key role because of their efficiency in transporting, providing imaging markers and selective release of drugs and carrier systems [1]. Anthracyclines, such as doxorubicin and...

O nível de endotoxina presente na água tratada para hemodiálise é um importante indicador de qualidade, uma vez que altas concentrações de endotoxina atuam como a principal fonte de inflamação crônica em pacientes submetidos à diálise. Este estudo visa validar o método analítico para determinar quantitativamente a endotoxina bacteriana em amostras...

Introduction During the manufacturing of sterile drugs, it is of the utmost importance to meet the minimum requirements for asepsis recommended by the legislations on good manufacturing practices-based efficient environmental monitoring. Aims and methods The availability of relatively simple to use matrix-assisted laser desorption ionization–time...

The use of flubendazole (FBZ) in the treatment of lymphatic filariasis and onchocerciasis (two high incidence neglected tropical diseases) has been hampered by its poor aqueous solubility. A material consisting of binary flubendazole/maleic acid crystals (FBZ/MA), showing considerably improved solubility and dissolution rate relative to flubendazol...

Poly(vinylpyrrolidone) (PVP) is one of the most commonly employed synthetic hydrophilic (nonionic) excipient in pharmaceutical formulations. Professor Walter Rappe and his team first developed this excipient during the 1930s and it is now gaining popularity due to its properties such as being nonantigenic, and hence avoiding the danger of infectiou...

Purpose: The sterilization process for medical devices is an important step due to microbiological quality requirements of polymeric products. Irradiation and ethylene oxide sterilizations, traditional techniques, may compromise safety and efficacy of medical devices due to oxidation/alkylation or due to the presence of residues in polymeric materi...

Diabetes mellitus (DM) is frequently increased in many countries and become a serious health problem worldwide. Diabetes is associated with dysfunction of different organs such as heart, eyes, blood vessels, nerves, and kidneys. There is a strong connection between diabetes and cancer. Metformin is one of the most commonly prescribed oral antidiabe...

Auricularia polytricha is a popular mushroom found all over the world. In this study we considered the effect of an aqueous extract of A. polytricha (AEAP) on restoring sexual performance parameters to normal, evaluated by considering observations of sexual behavior. At 0, 6, 12, 18, and 24 days, the following parameters of sexual performance were...

Replacement of reference medicines by generic or similar is allowed by law in Brazil, however the therapeutic equivalence among them is still an issue. The aim of this paper was to evaluate the in vitro and in silico therapeutic equivalence among cephalexin 500 mg tablets (reference, generic and similar) commercialized in Brazil. In vitro therapeut...

The proliferative cell process that causes prostate enlargement, obstruction of the bladder outlet, and lower urinary tract symptoms (LUTS) is known as benign prostatic hyperplasia (BPH). The prevalence of BPH worldwide is approximately 10%, 20%, 50%, and 80% for men in their 30s, 40s, 60s, and 70s, respectively. Recent data have revealed that over...

Cancer is a complicated transformational progression that fiercely changes the appearance of cell physiology as well as cells' relations with adjacent tissues. Developing an oncogenic characteristic requires a wide range of modifications in a gene expression at a cellular level. This can be achieved by activation or suppression of the gene regulati...

Despite the beneficial properties and outstanding potential of hydrogels for biomedical applications, several unmet challenges must be overcome, especially regarding to their known sensitivity to conventional sterilization methods. It is crucial for any biomaterial to withstand an efficient sterilization to obtain approval from regulatory organizat...

Purpose: The purpose of this article was to develop, characterize and test (in vivo) dacarbazine microparticles that may be labeled with 99mTc and Ra-223 for both use: diagnostic and therapy of metastatic melanoma. Methods: We developed by double emulsion solvent evaporation methodology the microparticle. The characterization has been done using...

The sterility test described in pharmacopoeial compendia requires a 14-day incubation period to obtain a valid analytical result. Therefore, the use of alternative methods to evaluate the sterility of pharmaceuticals, such as the BacT/Alert® 3D system, is particularly interesting, because it allows a reduced incubation period and lower associated c...

MicroRNAs (miRNAs) are noncoding RNAs of around 20-25 nucleotides in length with highly conserved characteristics. They moderate posttranscriptional silencing by precisely combining with 3' untranslated regions (UTRs) of target mRNAs at a complementary site. miR503, an associate of the "canonical" miRNA16 family, is expressed in numerous types of t...

Diabetes Mellitus is becoming the critical problem among the entire world and it is difficult to understand the molecular mechanism representing the concept of diabetic pathology. Recently the knowledge of the involvement of genetics in type 2 diabetes mellitus (T2DM) susceptibility has sketched a great concentration towards the transcriptional act...

Background: The respiratory tract as a non-invasive route of drug administration is gaining increasing attention in the present time on achieving both local and the systemic therapeutic effects. Success in achieving pulmonary delivery, requires overcoming barriers including mucociliary clearance and uptake by macrophages. An effective drug delivery...

The growing area of tissue engineering has the potential to alleviate the shortage of tissues and organs for transplantation, and electrospun biomaterial scaffolds are extremely promising devices for translating engineered tissues into a clinical setting. However, to be utilized in this capacity, these medical devices need to be sterile. Traditiona...

The effects of sterilization methods on the intrinsic properties of drug delivery systems (DDS) remains understudied, which ends up delaying the development of new and more effective therapeutic devices. This fact becomes even more critical when considering hydrogel-based DDS, since the presence of water in the structure can lead to alterations in...

Sterilization of hydrogels is challenging due to their often reported sensitivity to conventional methods involving heat or radiation. Although aseptic manufacturing is a possibility, terminal sterilization is safer in biological terms, leading to a higher overall efficiency, and thus should be used whenever it is possible.

Considering the various limitations associated with the conventional dosage forms, nanotechnology is gaining increased attention in drug delivery particularly in respiratory medicine and research because of its advantages like targeting effects, improved pharmacotherapy, and patient compliance. This paper provides a quick snapshot about the recent...

The present study aimed to develop controlled release beads using sodium alginate and pectin. Calcium chloride and epichlorhydrin were used as crosslinking agent. Repaglinide was used as model drug. The beads were characterized for morphology, size, drug entrapment efficiency and in vitro drug release. The morphological examination was done using s...

Repaglinide, an oral antidiabetic agent, has a rapid onset of action and short half–life of approximately 1 h. Developing a controlled and prolonged release delivery system is required to maintain its therapeutic plasma concentration and to eliminate its adverse effects particularly hypoglycemia. The present study aimed to develop controlled releas...

Paracetamol (PCM) has an acceptable safety profile when used at prescribed doses. However, it is now understood that paracetamol can damage the kidneys when administered as an overdose. In addition, oxidative stress can play a major role in causing nephrotoxicity. This investigation studies the efficacy of moralbosteroid isolated from M. alba stem...

Cytotoxicity. Cytotoxicity test data. (PDF)

ZetaSizer Statistical. Size, PDI and Zeta Potential statistical data. (XLSX)

ZetaSizer Data. Size, PDI and Zeta Potential data. (XLSX)

Transmittance. UV-Vis spectral data. (XLSX)

Many researches involving the development of new techniques and biomaterials to formulate a suitable drug delivery systems and tissue engineering have been conducted. The majority of published literature from these researches emphasizes the production and materials characterization. However there is very limited information regarding their steriliz...

The present study aimed to develop matrix-type transdermal drug delivery system (TDDS) of metoprolol tartrate using polyvinyl pyrrolidone (PVP) and polyvinyl alcohol (PVA). The transdermal films were evaluated for physical parameters, Fourier transform infrared spectroscopy analysis (FTIR), differential scanning calorimetry (DSC), in vitro drug rel...

Introduction: Medical devices related infections contribute greatly to the increasing costs on health care systems around the world. Continued improvements in low-temperature sterilization systems, capable of demising the risk of infection and inflammation are needed. Ozone gas sterilization is emerging as an effective, low cost, safe and environme...