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1.
J Pharm Sci ; 113(4): 1061-1067, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38042345

RESUMEN

In vitro release test (IVRT) method is important to monitor batch-to-batch quality variations during pharmaceutical manufacturing and also to show the pharmaceutical equivalence of a generic product with the innovator. To fulfil regulatory requirements for approval of a generic ophthalmic suspension product, in vitro release study is required. No compendial or non-compendial method is available for IVRT of nepafenac ophthalmic suspension. Current research is aimed to screen various approaches using different conventional and non-conventional instruments to suggest the most suitable technique appropriate for nepafenac ophthalmic suspension followed by optimization of method parameters and validation. The trials used the paddle apparatus (USP Type-2) with dialysis sacs, the flow-through cell apparatus (USP Type-4), the rotating bottle apparatus, and the Franz diffusion cell apparatus. With the USP Type-4 apparatus drug release was found to be ∼ 83% in the simulated tear fluid (STF) of pH 7.4 in 120 min that increased to ∼ 97% upon the addition of surfactant sodium lauryl sulfate (SLS). With USP Type-2 and Franz diffusion cell apparatus, the drug release was either slow or not reaching close to the complete release. Whereas, in the case of the rotating bottle apparatus, a burst release profile was observed. The estimation of the drug release was done by the HPLC method and all the method validation parameters like specificity, accuracy, linearity, and precision were found to be within acceptance criteria.


Asunto(s)
Bencenoacetamidas , Fenilacetatos , Diálisis Renal , Liberación de Fármacos , Preparaciones Farmacéuticas , Solubilidad
2.
CPT Pharmacometrics Syst Pharmacol ; 13(1): 132-142, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37864318

RESUMEN

Delayed-release and extended-release methylphenidate hydrochloride (JORNAY PM®) is a novel capsule formulation of methylphenidate hydrochloride, used to treat attention deficit hyperactivity disorder in patients 6 years and older. In this paper, we develop a Level A in vitro-in vivo correlation (IVIVC) model for extended-release methylphenidate hydrochloride to support post-approval manufacturing changes by evaluating a point-to-point correlation between the fraction of drug dissolved in vitro and the fraction of drug absorbed in vivo. Dissolution data from an in vitro study of three different release formulations: fast, medium, and slow, and pharmacokinetic data from two in vivo studies were used to develop an IVIVC model using a convolution-based approach. The time-course of the drug concentration resulting from an arbitrary dose was considered as a function of the in vivo drug absorption and the disposition and elimination processes defined by the unit impulse response function using the convolution integral. An IVIVC was incorporated in the model due to the temporal difference seen in the scatterplots of the estimated fraction of drug absorbed in vivo and the fraction of drug dissolved in vitro and Levy plots. Finally, the IVIVC model was subjected to evaluation of internal predictability. This IVIVC model can be used to predict in vivo profiles for different in vitro profiles of extended-release methylphenidate hydrochloride.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Metilfenidato , Humanos , Preparaciones de Acción Retardada/farmacocinética , Trastorno por Déficit de Atención con Hiperactividad/tratamiento farmacológico , Área Bajo la Curva
4.
Am J Sports Med ; 51(9): 2254-2266, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37366164

RESUMEN

BACKGROUND: Osteoarthritis is a chronic, progressive, and degenerative condition with limited therapy options. Recently, biologic therapies have been an evolving option for the management of osteoarthritis. PURPOSE: To assess whether allogenic mesenchymal stromal cells (MSCs) have the potential to improve functional parameters and induce cartilage regeneration in patients with osteoarthritis. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: A total of 146 patients with grade 2 and 3 osteoarthritis were randomized to either an MSC group or placebo group with a ratio of 1:1. There were 73 patients per group who received either a single intra-articular injection of bone marrow-derived MSCs (BMMSCs; 25 million cells) or placebo, followed by 20 mg per 2 mL of hyaluronic acid under ultrasound guidance. The primary endpoint was the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) total score. The secondary endpoints were WOMAC subscores for pain, stiffness, and physical function; the visual analog scale score for pain; and magnetic resonance imaging findings using T2 mapping and cartilage volume. RESULTS: Overall, 65 patients from the BMMSC group and 68 patients from the placebo group completed 12-month follow-up. The BMMSC group showed significant improvements in the WOMAC total score compared with the placebo group at 6 and 12 months (percentage change: -23.64% [95% CI, -32.88 to -14.40] at 6 months and -45.60% [95% CI, -55.97 to -35.23] at 12 months P < .001; percentage change, -44.3%). BMMSCs significantly improved WOMAC pain, stiffness, and physical function subscores as well as visual analog scale scores at 6 and 12 months (P < .001). T2 mapping showed that there was no worsening of deep cartilage in the medial femorotibial compartment of the knee in the BMMSC group at 12-month follow-up, whereas in the placebo group, there was significant and gradual worsening of cartilage (P < .001). Cartilage volume did not change significantly in the BMMSC group. There were 5 adverse events that were possibly/probably related to the study drug and consisted of injection-site swelling and pain, which improved within a few days. CONCLUSION: In this small randomized trial, BMMSCs proved to be safe and effective for the treatment of grade 2 and 3 osteoarthritis. The intervention was simple and easy to administer, provided sustained relief of pain and stiffness, improved physical function, and prevented worsening of cartilage quality for ≥12 months. REGISTRATION: CTRI/2018/09/015785 (National Institutes of Health and Clinical Trials Registry-India).


Asunto(s)
Osteoartritis de la Rodilla , Humanos , Resultado del Tratamiento , Articulación de la Rodilla , Rodilla , Dolor , Método Doble Ciego , Inyecciones Intraarticulares
6.
Stem Cell Res Ther ; 14(1): 60, 2023 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-37005673

RESUMEN

BACKGROUND: Peripheral arterial disease (PAD) of lower extremities comprises a clinical spectrum that extends from asymptomatic patients to critical limb ischemia (CLI) patients. 10% to 40% of the patients are at the risk of primary amputation. This study was planned in "no-option" patients of CLI due to atherosclerotic PAD to assess the efficacy and safety of pooled, allogeneic, adult human bone marrow-derived mesenchymal stromal cells which is already approved for marketing in India for CLI due to Buerger's disease. METHODS: This was a single-arm, multi-centric, phase III study where mesenchymal stromal cells was injected as 2 million cells/kg body weight in the calf muscle and around the ulcer. Twenty-four patients of lower extremity CLI due to PAD with Rutherford III-5 or III-6 and ankle-brachial pressure index ≤ 0.6 and having have at least one ulcer with area between 0.5 and 10 cm2 were included in the study. These patients were evaluated over 12 months from drug administration. RESULTS: Over a period of 12 months, statistical significant reduction of rest pain and ulcer size along with improvement in ankle-brachial pressure index and ankle systolic was observed. The quality of life of patients improved together with increase in total walking distance and major amputation-free survival time. CONCLUSION: Mesenchymal stromal cells may be a feasible option to treat "no-option" patients with atherosclerotic PAD. Trial registration This study is registered prospectively in National Institutes of Health and Clinical Trials Registry-India (CTRI) website: CTRI/2018/06/014436. Registered 6th June 2018. http://ctri.nic.in/Clinicaltrials/pmaindet2.php?trialid=24050&EncHid=&userName=stempeutics .


Asunto(s)
Isquemia Crónica que Amenaza las Extremidades , Enfermedad Arterial Periférica , Adulto , Humanos , Úlcera , Calidad de Vida , Isquemia , Enfermedad Arterial Periférica/terapia , Resultado del Tratamiento
7.
Clin Epidemiol Glob Health ; 19: 101209, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36619652

RESUMEN

Aim: The study investigate the severity of perceived stress and wide domains of psychiatric symptoms reported on initial screening in hospitalized patients of COVID-19 with a second aim to determine the role of sociodemographic factors and coping styles in the hospitalized patients of COVID-19. Method: Total 224 patients of COVID-19 infection, hospitalized in various isolation facilities were assessed via web-based self-reported questionnaires on perceived stress scale, brief cope inventory, and DSM-5 crosscutting level-1 questionnaire. Results: Majority of the patients reported moderate level of stress followed by mild and severe. Depression and Anxiety symptoms were most common psychopathologies though the patients have reported greater severity in various domains of psychiatric symptoms. Coping styles explains most of variance (64.8%) of the perceived stress. Similarly total PSS scores, coping styles, COVID-19 status and sociodemographic factors contributed significantly to the variance of all psychiatric symptoms. Conclusion: Factors like female gender, being married, belonging to nuclear families, service class and urban domicile are the significant factors determining higher risk of stress and developing more psychopathologies. Furthermore, coping styles used by the patients have a greater moderating effect on mental health symptoms and their perceived stress which can be a major area for interventions to reduce the mental health morbidities.

8.
Asian J Psychiatr ; 79: 103332, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36423424

RESUMEN

FND is common in Indian children and adolescents. Outcome related factors are not well known. With objective to study short-term outcome of FND, prospective, longitudinal, nine months follow-up study of 6-16 years was planned. Socioeconomic, clinical variables, I.Q. and personality traits at baseline and new psychiatric/physical illness, psychosocial factors and comorbidities during follow-up were assessed. Out of 68 children, scholastic (64.7%) and family problems (23.5%) were common psychosocial factors. After nine months,73% achieved remission. Reasons for non-remission were persistence of psychosocial factors and psychiatric comorbidities. A need arises for increasing awareness among general practitioners for early identification and management.


Asunto(s)
Trastornos de Conversión , Humanos , Niño , Adolescente , Estudios de Seguimiento , Estudios Prospectivos , Centros de Atención Terciaria , Trastornos de Conversión/psicología , Comorbilidad
9.
Cytotherapy ; 25(2): 220-228, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36274006

RESUMEN

BACKGROUND AIMS: Although biologiocal ancillay materials (AMs) have specific risk associated with their derivations, it plays key role to manufature cell and gene therapy (CGT) products. It is important to understand the regulation relevant to AMs for developers. METHODS: The authors investigated the guidelines and pharmacopeia (hereinafter referred to as "guidelines") for biological AMs used for the manufacture of CGT products in Asia (China, India, Japan, Korea and Taiwan). In addition, the authors benchmarked the relevant guidelines in the United States (US) and European Union (EU). RESULTS AND DISCUSSIONS: The guidelines could be classified into two types based on whether specific AMs are scoped: (i) general guidelines for risk assessment of AMs and (ii) guidelines for specific AMs. The authors compared the risk categories for each type of AM provided in the general guidelines between the US and China and the specific requirements for bovine serum and trypsin in the guidelines of China, Japan, Taiwan, US and EU. The authors further compiled in-depth descriptions of the respective regulations in China, India, Japan, Korea and Taiwan. There is limited availability of some guidelines for specific AMs. Moreover, there are no common requirements established across the surveyed countries and regions. Therefore, the authors suggest a risk assessment approach for AMs with consideration of their biological origin and traceability, production steps applied and ability to control or remove AMs from the final medicinal product over the CGT manufacturing process.


Asunto(s)
Unión Europea , Estados Unidos , Asia , China , Japón , India
10.
J Chromatogr Sci ; 61(5): 461-470, 2023 May 30.
Artículo en Inglés | MEDLINE | ID: mdl-35817343

RESUMEN

The stability of biopharmaceutical therapeutics over the storage period/shelf life has been a challenging concern for manufacturers. A noble strategy for mapping best and suitable storage conditions for recombinant human serum albumin (rHSA) in laboratory mixture was optimized using chromatographic data as per principal component analysis (PCA), and similarity was defined using hierarchical cluster analysis. In contrast, separability was defined using linear discriminant analysis (LDA) models. The quantitation was performed for rHSA peak (analyte of interest) and its degraded products, i.e., dimer, trimer, agglomerates and other degradation products. The chromatographic variables were calculated using validated stability-indicating assay method. The chromatographic data mapping was done for the above-mentioned peaks over three months at different temperatures, i.e., 20°C, 5-8°C and at room temperature (25°C). The PCA had figured out the ungrouped variable, whereas supervised mapping was done using LDA. As an outcome result of LDA, about 60% of data were correctly classified with the highest sensitivity for 25°C (Aq), 25°C and 5-8°C (Aq with 5% glucose as a stabilizer), whereas the highest specificity was observed for samples stored at 5-8°C (Aq with 5% glucose as a stabilizer).


Asunto(s)
Albúmina Sérica Humana , Aprendizaje Automático no Supervisado , Humanos , Análisis Discriminante , Análisis por Conglomerados , Glucosa , Temperatura
11.
Indian J Psychiatry ; 64(Suppl 2): S330-S343, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35602377

RESUMEN

Parkinson's disease (PD) is a heterogeneous progressive neurodegenerative disorder, with a triad of motor symptoms with akinesia/bradykinesia, resting tremor (4-6 Hz), and rigidity. It is the second most common neurodegenerative disease after Alzheimer's disease. The overall management of PD depends on the status of symptoms, functioning of the patients, impairment, disability, and its impact on quality of life. Depression, anxiety disorders, apathy, anhedonia, psychosis, cognitive impairments, dementia, and impulse control disorders (ICDs) are the common psychiatric symptoms/disorders comorbid with PD. Depression remains the most common psychiatric disorder reported to be comorbid with PD. Several pharmacological and nonpharmacological management strategies are used for the treatment of comorbid psychiatric disorders in PD. Selective serotonin reuptake inhibitors and serotonin norepinephrine reuptake inhibitors are used to treat depression in patients with PD. The best evidence of efficacy in PD psychosis is for clozapine and pimavanserin. The treatment for cognitive impairments in PD remains poorly researched. Rivastigmine is the only approved treatment for PD as per the Food and Drug Administration. Pramipexole, a dopamine agonist (DA), is reported to cause improvement in the symptoms of decreased willingness in apathy. The treatment approaches for different sleep disorders in PD are different. Identifying the cause, reviewing the patient's ongoing medications, and evaluating the impact of comorbid medical conditions and sleep hygiene are common to all conditions related to sleep disorders. The first approach for treating ICD symptoms is the reduction or discontinuation of DAs. The psychiatric symptoms in patients with PD are highly prevalent, and their management should be included in the basic treatment algorithm for PD. This paper summarizes common psychiatric symptoms/disorders in PD and their management approaches.

13.
Cytotherapy ; 24(9): 892-904, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35193824

RESUMEN

The 4th Asia Partnership Conference of Regenerative Medicine (APACRM) was held online on April 15, 2021, to promote regulatory harmonization of regenerative medicine products throughout Asia. Recognizing domestic regulatory guidelines within each country and region, and their underpinning rationales, is an important initial step toward a convergence of regulations. The 4th APACRM consisted of an open dialog with regulatory agencies regarding nonclinical and quality settings for cell therapy products (CTPs) through industry presentations and panel discussions with regulatory agencies. The latest updates on regenerative medicine fields in each country and region, and specific regulatory schematics in Japan, were also introduced. The objective of this paper is to summarize the proceedings of the 4th APACRM for public dissemination and to foster further discussion in the future.


Asunto(s)
Tratamiento Basado en Trasplante de Células y Tejidos , Medicina Regenerativa , Asia , Japón
14.
Stem Cell Rev Rep ; 18(5): 1851-1864, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35113368

RESUMEN

INTRODUCTION: Mesenchymal stromal cells (MSC) from Wharton's jelly of umbilical cord is primitive and serve as an inexhaustible source of stem cells with greater potential in clinics. The existence of heterogeneity among the donor MSCs makes it difficult to predict the properties and clinical outcome of WJ-MSCs. We developed a strategy to minimize the donor to donor heterogeneity and produce consistency in biological properties by pooling three individual donors WJ-MSCs. Further, evaluated the effectiveness of the pooled MSCs in regulating the disease severity of Rheumatoid arthritis (RA) in animal models. METHODS: WJ-MSCs were isolated from umbilical cord obtained from different donors, characterised and pooled based on the gender of baby. The biological properties of the pooled WJ-MSCs were compared to the individual WJ-MSCs. Further, the pooled WJ-MSCs were analysed for their safety profile in both in vitro and in vivo settings. The efficiency of pooled WJ-MSCs in regulating RA pathogenesis was also analysed in mice models of Collagen induced arthritis (CIA). RESULTS: We identified differences in proliferation capacity, pro inflammatory gene expression levels among individual WJ-MSCs isolated from different donors and the variation is also attributed to gender difference. WJ-MSCs pooled and cultured from different donor's exhibit all the MSC characteristics and exhibited superior immunosuppressive capabilities. In the in vivo toxicity study, pooled MSCs are found to be safe, and further in the RA preclinical studies, they were found to decrease the disease severity in these animals. CONCLUSIONS: Pooled WJ-MSCs reduces heterogeneity of individual donors and have superior immunosuppressive property. It is also effective in reducing the disease severity in the experimental animal models of RA.


Asunto(s)
Artritis Reumatoide , Células Madre Mesenquimatosas , Gelatina de Wharton , Animales , Artritis Reumatoide/terapia , Diferenciación Celular , Proliferación Celular , Células Madre Mesenquimatosas/metabolismo , Ratones , Gelatina de Wharton/metabolismo
15.
Asian J Psychiatr ; 70: 103030, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35180464

RESUMEN

BACKGROUND: Autism spectrum disorder is a neurodevelopmental disorder which is increasing across the globe. The disorder in children not only creates burden of care in caregivers but also leads to impaired quality of life of families. OBJECTIVE: To study the burden of care and quality of life in caregivers of children and adolescents with ASD. METHODOLOGY: Cross sectional study conducted in Child and Adolescent psychiatry outpatient services at a government centre in north India between September 2014 to August 2015. The sample consisted of 40 caregivers of children with Autism. Mean age of the caregiver's were 34.72 ± 6.32 years. Burden of care and quality of life were measured by Burden Assessment Schedule (BAS) and World Health Organization Quality of Life Instrument, Short Form (WHOQOL-BREF) questionnaire respectively. RESULTS: Mean burden of care on BAS was 71.73 ± 8.62 indicating quite a high degree of burden on the caregivers of ASD. Significantly higher burden was reported by caregivers belonging to low income families and caregivers of children in age group 6-12 years. A positive correlation was observed between severity of autism and burden of care in caregivers. The study also found that as the severity of symptom increases the QoL in caregiver worsens. CONCLUSION: Caregivers of children with ASD suffer from high burden of care and impaired QoL.


Asunto(s)
Trastorno del Espectro Autista , Calidad de Vida , Adolescente , Adulto , Cuidadores , Niño , Estudios Transversales , Humanos , Encuestas y Cuestionarios
16.
J Cosmet Dermatol ; 21(2): 814-826, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33835668

RESUMEN

BACKGROUND: Under-eye dark circles are a common condition observed in dermatology practice. Mesenchymal stromal cell-derived conditioned medium (MSC-CM) contains an array of growth factors and cytokines reported to promote periorbital rejuvenation and may be useful in removing the dark circle around the eyes. AIMS: The aim of the present study was to evaluate the safety and efficacy of developed bioactive formulation containing mesenchymal stromal cell-derived conditioned medium in reducing the under-eye dark circles. PATIENTS/METHODS: We tested the safety profile of MSC-CM along with antioxidants, in vitro using human melanocytes cultures. The bioactive formulation containing MSC-CM was developed and tested for physicochemical parameters. The dermatological safety was evaluated by primary irritant patch-test under complete occlusion on healthy human subjects. To elucidate its safety and efficacy, monocentric, open-label, single-arm study was carried out in 20 Indian female subjects for the duration of 12 weeks. Parameters such as eye puffiness, radiance, skin smoothness, even skin tone, periorbital fine lines and wrinkles, crow's feet, whitening, pigmentation, skin tightening, and refreshing/soothing effect were used to investigate the rejuvenating property of the bioactive formulation. RESULTS: Mesenchymal stromal cell-derived conditioned medium along with antioxidants decreased the melanin content compared to the CM alone in the melanocyte cultures. Besides, the bioactive formulation was safe and emerged as a non-irritant product. Improvement in the majority of the clinical parameters assessed through efficacy study was observed within 4 weeks of topical application of the formulation twice daily, and showed continued improvement for 12 weeks as evaluated by the dermatologists as well as self-assessment by the subjects. CONCLUSION: The bioactive formulation containing MSC-CM was safe and effective in reducing the under-eye dark circles and was beneficial in improving the overall appearance of the eye area.


Asunto(s)
Células Madre Mesenquimatosas , Rejuvenecimiento , Medios de Cultivo Condicionados/farmacología , Femenino , Voluntarios Sanos , Humanos , Resultado del Tratamiento
17.
Stem Cells Transl Med ; 10(12): 1602-1613, 2021 12.
Artículo en Inglés | MEDLINE | ID: mdl-34519179

RESUMEN

Buerger's disease or thromboangiitis obliterans is a type of obstructive vascular diseases categorized as vasculitis and usually present in 95% of young smoker men. The main pathogenetic mechanism is interplay between immune system and inflammation. Earlier our phase II study has shown that Stempeucel is safe when injected at 2 million cells/kg body weight by virtue of its anti-inflammatory, immunomodulatory, and angiogenetic properties. The present study was conducted to further assess the safety and efficacy of Stempeucel in critical limb ischemia due to Buerger's disease after obtaining approval from Indian FDA based on the data generated in the phase II study. This is an open label, multicenteric phase IV PMS study conducted across India with experienced vascular surgeons. Fifty patients of critical limb ischemia due to Buerger's disease with Rutherford III-5 or III-6 were included in the study and each individual received a dose of 2 million cells/kg body weight of Stempeucel in the calf muscles and around the ulcer. These patients were evaluated over 12 months from drug administration. The present study showed the continued long term efficacy over a period of 12 months follow up in these patients corroborating the result obtained in the previous phase II studies. There was significant improvement in rest pain, ankle systolic pressure, and ankle brachial pressure index with accelerated ulcer healing. In conclusion, the present study shows that the intramuscular administration of Stempeucel continues to be safe, tolerable, and effective alternative treatment in patients with Buerger's disease.


Asunto(s)
Tromboangitis Obliterante , Isquemia Crónica que Amenaza las Extremidades , Humanos , Isquemia/cirugía , Extremidad Inferior , Masculino , Tromboangitis Obliterante/complicaciones , Tromboangitis Obliterante/terapia , Resultado del Tratamiento
18.
Indian J Psychiatry ; 63(3): 233-239, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34211215

RESUMEN

BACKGROUND: Alcohol use disorder is attributing to a significant health-care burden worldwide. Early-onset alcohol dependence is associated with more adverse outcomes than those with late-onset alcohol dependence. Comorbid externalizing disorders and cognitive deficits may be associated with the negative outcomes in early-onset alcohol dependence. This study aims at exploring the externalizing psychopathology and cognitive performance in early-onset alcohol dependence versus late-onset alcohol dependence. MATERIALS AND METHODS: This is a cross-sectional study carried out on patients attending the psychiatry unit of a tertiary care center of north India after obtaining approval from the institutional ethics committee. A total of 57 patients with alcohol dependence enrolled in the study, after screening a total of 112 patients. Patients were evaluated for the externalizing psychopathology (using SSAGA intravenous [IV]) and cognitive performance (using Wisconsin Card Sorting Test [WCST] and continuous performance test [CPT]). Comparison of sociodemographic, clinical variables as well as externalizing psychopathology and cognitive performance was done between early-onset and late-onset alcohol dependence. RESULTS: Comparison between early-onset and late-onset alcohol dependence revealed that the score of individual externalizing psychopathologies and the total externalizing psychopathology score on SSAGA IV in the early-onset group are significantly higher than late-onset alcohol dependence. Similarly, there is a significant difference in the executive functions (on WCST) between the two groups (early onset < late onset). On CPT, there are significantly more errors of omission in the early-onset group in comparison to their late-onset counterparts. CONCLUSION: Early-onset alcohol dependence is associated with more externalizing psychopathology and more cognitive dysfunction than late-onset alcohol dependence.

19.
Stem Cell Res Ther ; 12(1): 279, 2021 05 10.
Artículo en Inglés | MEDLINE | ID: mdl-33971964

RESUMEN

BACKGROUND: We have previously demonstrated that a pooled population of bone marrow-derived, allogeneic mesenchymal stromal cells (BMMSC), Stempeucel®-1, produced under good manufacturing practices (GMP) conditions, showed clinical efficacy and safety in patients suffering from critical limb ischemia (CLI) due to Buerger's disease. While Stempeucel®-1 is currently used for CLI and other clinical indications, we wanted to ensure that the product's continuity is addressed by developing and characterizing a second generation of pooled product (Stempeucel®-1A), manufactured identically from second BM aspirates of the same three donors after a 2-year interval. METHODS: The two versions of Stempeucel® were manufactured and subjected to gene and protein expression analysis. The nature of various growth factors/cytokines secreted and immunomodulatory activity of these two cell populations were compared directly by various in vitro assays. The preclinical efficacy of these two cell types was compared in an experimental model of hind limb ischemia (HLI) in BALB/c nude mice. The reversal of ischemia, blood flow, and muscle regeneration were determined by functional scoring, laser Doppler imaging, and immunohistochemical analyses. RESULTS: Qualitative and quantitative analyses of genes and proteins involved in promoting angiogenic activity and immune regulatory functions revealed high levels of correlation between Stempeucel®-1 and Stempeucel®-1A cell populations. Moreover, intramuscular (i.m) administration of these two cell products in the ischemic limbs of BALB/c nude mice showed significant repair (≥ 70%) of toe and foot necrosis, leading to improved ambulatory function and limb salvage. Furthermore, a biodistribution kinetics study showed that Stempeucel®-1 was mostly localized in the ischemic muscles of mice for a significantly longer time compared to normal muscles, thus playing an essential role in modulating and reversing HLI damage. CONCLUSIONS: This study shows that with a reproducible manufacturing procedure, it is possible to generate large numbers of pooled mesenchymal stromal cells from human bone marrow samples to establish product equivalence. We conclude from these results that, for the first time, two pooled, allogeneic BMMSC products can be repeatedly manufactured at different time intervals using a two-tier cell banking process with robust and comparable angiogenic properties to treat ischemic diseases.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Trasplante de Células Madre Mesenquimatosas , Células Madre Mesenquimatosas , Animales , Médula Ósea , Miembro Posterior , Humanos , Isquemia/terapia , Ratones , Ratones Endogámicos BALB C , Ratones Desnudos , Neovascularización Fisiológica , Distribución Tisular
20.
Indian J Psychol Med ; 42(4): 334-340, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-33402794

RESUMEN

BACKGROUND: Alcohol use disorder is a serious health problem with high comorbidities. Early-onset alcohol use has been associated with greater impulsivity, increased severity of dependence, frequent alcohol withdrawal complications, externalizing symptoms, and antisocial behaviors. We aimed to evaluate the psychiatric comorbidities and severity of addiction in early- and late-onset alcohol dependence. METHODS: This was a cross-sectional study. All patients fulfilling the diagnostic criteria of alcohol dependence as per International Classification of Diseases (10th edition) were included in it. Semi-Structured Assessment for Genetics of Alcoholism IV was applied to find the age of onset of dependence as per the lifetime frame and also to find comorbidities. Composite International Diagnostic Interview 3.0. was used to find other comorbidities. The severity of addiction was evaluated with Addiction Severity Index, 5th edition. All the sociodemographic and clinical parameters were compared between patients with the early- and late-onset alcohol dependence. RESULTS: Out of the 112 patients screened, 57 met the selection criteria, 26 were with early-onset and 31 with late-onset alcohol dependence. The patients were all males. The patients with early-onset alcohol dependence had a higher family history (P = 0.006) and were nonearning (P = 0.002) in comparison to the group with late-onset dependence. The comorbidity among all patients was 59.6% and 84.2% in current and lifetime frames, respectively. It was significantly higher in the early-onset group, both for current (P = 0.015) and lifetime (P = 0.031) frames. On the domains of Addiction Severity Index 5th edition, the early-onset group had a more severe profile of addiction in all domains except the medical domain. CONCLUSION: Comorbidity is high among patients with alcohol dependence and is even higher for the early-onset group. The family history was higher in the early-onset group and they have more severe profile of substance use.

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